145091864 has 32 divisors (see below), whose sum is σ = 275394000. Its totient is φ = 71660160.

The previous prime is 145091861. The next prime is 145091909. The reversal of 145091864 is 468190541.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145091861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415562 + ... + 415910.

Almost surely, 2^145091864 is an apocalyptic number.

It is an amenable number.

145091864 is a deficient number, since it is larger than the sum of its proper divisors (130302136).

145091864 is a wasteful number, since it uses less digits than its factorization.

145091864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 145091864 is about 12045.4084198088. The cubic root of 145091864 is about 525.4697099419.

The spelling of 145091864 in words is "one hundred forty-five million, ninety-one thousand, eight hundred sixty-four".