145271564 has 12 divisors (see below), whose sum is σ = 254909424. Its totient is φ = 72440304.

The previous prime is 145271551. The next prime is 145271593. The reversal of 145271564 is 465172541.

It is a super-2 number, since 2×145271564² = 42207654614012192, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 47192 + ... + 50175.

It is an arithmetic number, because the mean of its divisors is an integer number (21242452).

Almost surely, 2^145271564 is an apocalyptic number.

It is an amenable number.

145271564 is a deficient number, since it is larger than the sum of its proper divisors (109637860).

145271564 is a wasteful number, since it uses less digits than its factorization.

145271564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97744 (or 97742 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 145271564 is about 12052.8653854592. The cubic root of 145271564 is about 525.6865563537.

The spelling of 145271564 in words is "one hundred forty-five million, two hundred seventy-one thousand, five hundred sixty-four".