155252168 has 8 divisors (see below), whose sum is σ = 291097830. Its totient is φ = 77626080.

The previous prime is 155252131. The next prime is 155252183. The reversal of 155252168 is 861252551.

It can be written as a sum of positive squares in only one way, i.e., 150749284 + 4502884 = 12278^2 + 2122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9703253 + ... + 9703268.

Almost surely, 2^155252168 is an apocalyptic number.

It is an amenable number.

155252168 is a deficient number, since it is larger than the sum of its proper divisors (135845662).

155252168 is a wasteful number, since it uses less digits than its factorization.

155252168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19406527 (or 19406523 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

The square root of 155252168 is about 12460.0227929166. The cubic root of 155252168 is about 537.4596824275.

The spelling of 155252168 in words is "one hundred fifty-five million, two hundred fifty-two thousand, one hundred sixty-eight".