154420564 has 6 divisors (see below), whose sum is σ = 270235994. Its totient is φ = 77210280.

The previous prime is 154420559. The next prime is 154420577. The reversal of 154420564 is 465024451.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86490000 + 67930564 = 9300^2 + 8242^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 19302567 + ... + 19302574.

Almost surely, 2^154420564 is an apocalyptic number.

It is an amenable number.

154420564 is a deficient number, since it is larger than the sum of its proper divisors (115815430).

154420564 is a wasteful number, since it uses less digits than its factorization.

154420564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38605145 (or 38605143 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 154420564 is about 12426.6070992850. The cubic root of 154420564 is about 536.4983345282.

The spelling of 154420564 in words is "one hundred fifty-four million, four hundred twenty thousand, five hundred sixty-four".