155309132 has 36 divisors (see below), whose sum is σ = 306455688. Its totient is φ = 68299200.

The previous prime is 155309129. The next prime is 155309137. The reversal of 155309132 is 231903551.

It is a junction number, because it is equal to n+sod(n) for n = 155309095 and 155309104.

It is not an unprimeable number, because it can be changed into a prime (155309137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40448 + ... + 44120.

It is an arithmetic number, because the mean of its divisors is an integer number (8512658).

Almost surely, 2^155309132 is an apocalyptic number.

It is an amenable number.

155309132 is a deficient number, since it is larger than the sum of its proper divisors (151146556).

155309132 is a wasteful number, since it uses less digits than its factorization.

155309132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 155309132 is about 12462.3084538941. The cubic root of 155309132 is about 537.5254079931.

The spelling of 155309132 in words is "one hundred fifty-five million, three hundred nine thousand, one hundred thirty-two".