143400625 has 15 divisors (see below), whose sum is σ = 179568301. Its totient is φ = 114481000.

The previous prime is 143400613. The next prime is 143400643. The reversal of 143400625 is 526004341.

The square root of 143400625 is 11975.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 11242609 + 132158016 = 3353^2 + 11496^2 .

It is not a de Polignac number, because 143400625 - 2⁷ = 143400497 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143400625.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 299136 + ... + 299614.

Almost surely, 2^143400625 is an apocalyptic number.

143400625 is the 11975-th square number.

143400625 is the 5988-th centered octagonal number.

It is an amenable number.

143400625 is a deficient number, since it is larger than the sum of its proper divisors (36167676).

143400625 is an frugal number, since it uses more digits than its factorization.

143400625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The cubic root of 143400625 is about 523.4200421147.

Multiplying 143400625 by its sum of digits (25), we get a square (3585015625 = 59875²).

143400625 divided by its sum of digits (25) gives a square (5736025 = 2395²).

Adding to 143400625 its reverse (526004341), we get a palindrome (669404966).

The spelling of 143400625 in words is "one hundred forty-three million, four hundred thousand, six hundred twenty-five".