155950272 has 140 divisors (see below), whose sum is σ = 470230200. Its totient is φ = 51093504.

The previous prime is 155950261. The next prime is 155950273. The reversal of 155950272 is 272059551.

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

It is not an unprimeable number, because it can be changed into a prime (155950273) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 347104 + ... + 347552.

Almost surely, 2^155950272 is an apocalyptic number.

155950272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155950272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235115100).

155950272 is an abundant number, since it is smaller than the sum of its proper divisors (314279928).

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

155950272 is an equidigital number, since it uses as much as digits as its factorization.

155950272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 155950272 is about 12488.0051249189. The cubic root of 155950272 is about 538.2640550450.

The spelling of 155950272 in words is "one hundred fifty-five million, nine hundred fifty thousand, two hundred seventy-two".