155251532 has 24 divisors (see below), whose sum is σ = 274337280. Its totient is φ = 76874000.

The previous prime is 155251517. The next prime is 155251559. The reversal of 155251532 is 235152551.

It is a junction number, because it is equal to n+sod(n) for n = 155251495 and 155251504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239633 + ... + 240279.

It is an arithmetic number, because the mean of its divisors is an integer number (11430720).

Almost surely, 2^155251532 is an apocalyptic number.

It is an amenable number.

155251532 is a deficient number, since it is larger than the sum of its proper divisors (119085748).

155251532 is a wasteful number, since it uses less digits than its factorization.

155251532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1139 counting only the distinct ones).

The product of its digits is 7500, while the sum is 29.

The square root of 155251532 is about 12459.9972712678. The cubic root of 155251532 is about 537.4589485143.

The spelling of 155251532 in words is "one hundred fifty-five million, two hundred fifty-one thousand, five hundred thirty-two".