155345252 has 12 divisors (see below), whose sum is σ = 287845740. Its totient is φ = 73103616.

The previous prime is 155345233. The next prime is 155345263. The reversal of 155345252 is 252543551.

It can be written as a sum of positive squares in 2 ways, for example, as 44169316 + 111175936 = 6646^2 + 10544^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142177 + ... + 1142312.

It is an arithmetic number, because the mean of its divisors is an integer number (23987145).

Almost surely, 2^155345252 is an apocalyptic number.

It is an amenable number.

155345252 is a deficient number, since it is larger than the sum of its proper divisors (132500488).

155345252 is a wasteful number, since it uses less digits than its factorization.

155345252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284510 (or 2284508 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 155345252 is about 12463.7575393619. The cubic root of 155345252 is about 537.5670752420.

The spelling of 155345252 in words is "one hundred fifty-five million, three hundred forty-five thousand, two hundred fifty-two".