145937280225 has 72 divisors (see below), whose sum is σ = 268846119136. Its totient is φ = 69787872000.

The previous prime is 145937280193. The next prime is 145937280241. The reversal of 145937280225 is 522082739541.

It is not a de Polignac number, because 145937280225 - 2⁵ = 145937280193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 552330 + ... + 772620.

Almost surely, 2^145937280225 is an apocalyptic number.

145937280225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145937280225 is a deficient number, since it is larger than the sum of its proper divisors (122908838911).

145937280225 is a wasteful number, since it uses less digits than its factorization.

145937280225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220399 (or 220383 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 145937280225 in words is "one hundred forty-five billion, nine hundred thirty-seven million, two hundred eighty thousand, two hundred twenty-five".