145400440625 has 48 divisors (see below), whose sum is σ = 198485671104. Its totient is φ = 105625800000.

The previous prime is 145400440597. The next prime is 145400440631. The reversal of 145400440625 is 526044004541.

It is not a de Polignac number, because 145400440625 - 2³⁶ = 76680963889 is a prime.

It is a super-2 number, since 2×145400440625² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39976307 + ... + 39979943.

It is an arithmetic number, because the mean of its divisors is an integer number (4135118148).

Almost surely, 2^145400440625 is an apocalyptic number.

It is an amenable number.

145400440625 is a deficient number, since it is larger than the sum of its proper divisors (53085230479).

145400440625 is an equidigital number, since it uses as much as digits as its factorization.

145400440625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4836 (or 4816 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 145400440625 in words is "one hundred forty-five billion, four hundred million, four hundred forty thousand, six hundred twenty-five".