145331508 has 48 divisors (see below), whose sum is σ = 388795904. Its totient is φ = 41389920.

The previous prime is 145331507. The next prime is 145331569. The reversal of 145331508 is 805133541.

It is a super-2 number, since 2×145331508² = 42242494435108128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145331507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25191 + ... + 30417.

Almost surely, 2^145331508 is an apocalyptic number.

It is an amenable number.

145331508 is an abundant number, since it is smaller than the sum of its proper divisors (243464396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145331508 is a wasteful number, since it uses less digits than its factorization.

145331508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572 (or 5570 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 145331508 is about 12055.3518405727. The cubic root of 145331508 is about 525.7588518092.

The spelling of 145331508 in words is "one hundred forty-five million, three hundred thirty-one thousand, five hundred eight".