145404664 has 8 divisors (see below), whose sum is σ = 272633760. Its totient is φ = 72702328.

The previous prime is 145404647. The next prime is 145404667. The reversal of 145404664 is 466404541.

145404664 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×145404664² = 42285032625905792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145404667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9087784 + ... + 9087799.

It is an arithmetic number, because the mean of its divisors is an integer number (34079220).

Almost surely, 2^145404664 is an apocalyptic number.

It is an amenable number.

145404664 is a deficient number, since it is larger than the sum of its proper divisors (127229096).

145404664 is a wasteful number, since it uses less digits than its factorization.

145404664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18175589 (or 18175585 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 145404664 is about 12058.3856299258. The cubic root of 145404664 is about 525.8470546663.

The spelling of 145404664 in words is "one hundred forty-five million, four hundred four thousand, six hundred sixty-four".