154649564 has 6 divisors (see below), whose sum is σ = 270636744. Its totient is φ = 77324780.

The previous prime is 154649563. The next prime is 154649567. The reversal of 154649564 is 465946451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154649563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19331192 + ... + 19331199.

It is an arithmetic number, because the mean of its divisors is an integer number (45106124).

Almost surely, 2^154649564 is an apocalyptic number.

It is an amenable number.

154649564 is a deficient number, since it is larger than the sum of its proper divisors (115987180).

154649564 is a wasteful number, since it uses less digits than its factorization.

154649564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38662395 (or 38662393 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The square root of 154649564 is about 12435.8177857349. The cubic root of 154649564 is about 536.7634059541.

The spelling of 154649564 in words is "one hundred fifty-four million, six hundred forty-nine thousand, five hundred sixty-four".