143995425 has 24 divisors (see below), whose sum is σ = 272083776. Its totient is φ = 65826240.

The previous prime is 143995421. The next prime is 143995427. The reversal of 143995425 is 524599341.

It is not a de Polignac number, because 143995425 - 2² = 143995421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143995421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136614 + ... + 137663.

It is an arithmetic number, because the mean of its divisors is an integer number (11336824).

Almost surely, 2^143995425 is an apocalyptic number.

143995425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143995425 is a deficient number, since it is larger than the sum of its proper divisors (128088351).

143995425 is a wasteful number, since it uses less digits than its factorization.

143995425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274297 (or 274292 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 143995425 is about 11999.8093734859. The cubic root of 143995425 is about 524.1427279071.

The spelling of 143995425 in words is "one hundred forty-three million, nine hundred ninety-five thousand, four hundred twenty-five".