154742564 has 6 divisors (see below), whose sum is σ = 270799494. Its totient is φ = 77371280.

The previous prime is 154742557. The next prime is 154742573. The reversal of 154742564 is 465247451.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 93276964 + 61465600 = 9658^2 + 7840^2 .

It is a super-2 number, since 2×154742564² = 47890522226588192, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19342817 + ... + 19342824.

It is an arithmetic number, because the mean of its divisors is an integer number (45133249).

Almost surely, 2^154742564 is an apocalyptic number.

It is an amenable number.

154742564 is a deficient number, since it is larger than the sum of its proper divisors (116056930).

154742564 is a wasteful number, since it uses less digits than its factorization.

154742564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38685645 (or 38685643 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 154742564 is about 12439.5564229598. The cubic root of 154742564 is about 536.8709803358.

The spelling of 154742564 in words is "one hundred fifty-four million, seven hundred forty-two thousand, five hundred sixty-four".