155323764 has 96 divisors (see below), whose sum is σ = 440294400. Its totient is φ = 47139840.

The previous prime is 155323757. The next prime is 155323799. The reversal of 155323764 is 467323551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 55552 + ... + 58280.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^155323764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155323764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220147200).

155323764 is an abundant number, since it is smaller than the sum of its proper divisors (284970636).

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

155323764 is a wasteful number, since it uses less digits than its factorization.

155323764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790 (or 2782 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 155323764 is about 12462.8954902141. The cubic root of 155323764 is about 537.5422879294.

The spelling of 155323764 in words is "one hundred fifty-five million, three hundred twenty-three thousand, seven hundred sixty-four".