155123356 has 24 divisors (see below), whose sum is σ = 278014464. Its totient is φ = 75712560.

The previous prime is 155123347. The next prime is 155123363. The reversal of 155123356 is 653321551.

It is a congruent number.

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, 26601 + ... + 31903.

It is an arithmetic number, because the mean of its divisors is an integer number (11583936).

Almost surely, 2^155123356 is an apocalyptic number.

It is an amenable number.

155123356 is a deficient number, since it is larger than the sum of its proper divisors (122891108).

155123356 is a wasteful number, since it uses less digits than its factorization.

155123356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481 (or 5479 counting only the distinct ones).

The product of its digits is 13500, while the sum is 31.

The square root of 155123356 is about 12454.8527088842. The cubic root of 155123356 is about 537.3109987015.

The spelling of 155123356 in words is "one hundred fifty-five million, one hundred twenty-three thousand, three hundred fifty-six".