155393960 has 32 divisors (see below), whose sum is σ = 352913760. Its totient is φ = 61574976.

The previous prime is 155393947. The next prime is 155393983. The reversal of 155393960 is 69393551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13874 + ... + 22433.

It is an arithmetic number, because the mean of its divisors is an integer number (11028555).

Almost surely, 2^155393960 is an apocalyptic number.

155393960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155393960 is an abundant number, since it is smaller than the sum of its proper divisors (197519800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155393960 is a wasteful number, since it uses less digits than its factorization.

155393960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36425 (or 36421 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 41.

The square root of 155393960 is about 12465.7113715985. The cubic root of 155393960 is about 537.6232535087.

It can be divided in two parts, 1553939 and 60, that multiplied together give a triangular number (93236340 = T₁₃₆₅₅).

The spelling of 155393960 in words is "one hundred fifty-five million, three hundred ninety-three thousand, nine hundred sixty".