155317960 has 32 divisors (see below), whose sum is σ = 399389760. Its totient is φ = 53251776.

The previous prime is 155317949. The next prime is 155317961. The reversal of 155317960 is 69713551.

155317960 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155317961) by changing a digit.

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, 277074 + ... + 277633.

It is an arithmetic number, because the mean of its divisors is an integer number (12480930).

Almost surely, 2^155317960 is an apocalyptic number.

155317960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155317960 is an abundant number, since it is smaller than the sum of its proper divisors (244071800).

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

155317960 is a wasteful number, since it uses less digits than its factorization.

155317960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554725 (or 554721 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 155317960 is about 12462.6626368525. The cubic root of 155317960 is about 537.5355923790.

The spelling of 155317960 in words is "one hundred fifty-five million, three hundred seventeen thousand, nine hundred sixty".