145719025 has 6 divisors (see below), whose sum is σ = 180691622. Its totient is φ = 116575200.

The previous prime is 145718983. The next prime is 145719047. The reversal of 145719025 is 520917541.

It can be written as a sum of positive squares in 3 ways, for example, as 178929 + 145540096 = 423^2 + 12064^2 .

It is a de Polignac number, because none of the positive numbers 2^k-145719025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2914356 + ... + 2914405.

Almost surely, 2^145719025 is an apocalyptic number.

It is an amenable number.

145719025 is a deficient number, since it is larger than the sum of its proper divisors (34972597).

145719025 is an equidigital number, since it uses as much as digits as its factorization.

145719025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828771 (or 5828766 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 145719025 is about 12071.4135460600. The cubic root of 145719025 is about 526.2257376589.

The spelling of 145719025 in words is "one hundred forty-five million, seven hundred nineteen thousand, twenty-five".