154771252 has 6 divisors (see below), whose sum is σ = 270849698. Its totient is φ = 77385624.

The previous prime is 154771249. The next prime is 154771261. The reversal of 154771252 is 252177451.

It can be written as a sum of positive squares in only one way, i.e., 134467216 + 20304036 = 11596^2 + 4506^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19346403 + ... + 19346410.

Almost surely, 2^154771252 is an apocalyptic number.

It is an amenable number.

154771252 is a deficient number, since it is larger than the sum of its proper divisors (116078446).

154771252 is a wasteful number, since it uses less digits than its factorization.

154771252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38692817 (or 38692815 counting only the distinct ones).

The product of its digits is 19600, while the sum is 34.

The square root of 154771252 is about 12440.7094652998. The cubic root of 154771252 is about 536.9041554420.

The spelling of 154771252 in words is "one hundred fifty-four million, seven hundred seventy-one thousand, two hundred fifty-two".