145904684 has 24 divisors (see below), whose sum is σ = 266881440. Its totient is φ = 69705216.

The previous prime is 145904683. The next prime is 145904711. The reversal of 145904684 is 486409541.

It is not an unprimeable number, because it can be changed into a prime (145904683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4769 + ... + 17735.

It is an arithmetic number, because the mean of its divisors is an integer number (11120060).

Almost surely, 2^145904684 is an apocalyptic number.

It is an amenable number.

145904684 is a deficient number, since it is larger than the sum of its proper divisors (120976756).

145904684 is a wasteful number, since it uses less digits than its factorization.

145904684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13097 (or 13095 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 145904684 is about 12079.1011254977. The cubic root of 145904684 is about 526.4491289454.

The spelling of 145904684 in words is "one hundred forty-five million, nine hundred four thousand, six hundred eighty-four".