145506604 has 24 divisors (see below), whose sum is σ = 271600560. Its totient is φ = 67969536.

The previous prime is 145506589. The next prime is 145506661. The reversal of 145506604 is 406605541.

It is a super-2 number, since 2×145506604² = 42344343615225632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507 + ... + 17125.

It is an arithmetic number, because the mean of its divisors is an integer number (11316690).

Almost surely, 2^145506604 is an apocalyptic number.

It is an amenable number.

145506604 is a deficient number, since it is larger than the sum of its proper divisors (126093956).

145506604 is a wasteful number, since it uses less digits than its factorization.

145506604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15777 (or 15775 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 145506604 is about 12062.6118233159. The cubic root of 145506604 is about 525.9699125470.

The spelling of 145506604 in words is "one hundred forty-five million, five hundred six thousand, six hundred four".