155254320 has 400 divisors, whose sum is σ = 617564640. Its totient is φ = 35831808.

The previous prime is 155254303. The next prime is 155254327. The reversal of 155254320 is 23452551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155254327) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1600512 + ... + 1600608.

Almost surely, 2^155254320 is an apocalyptic number.

155254320 is a gapful number since it is divisible by the number (10) 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 155254320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308782320).

155254320 is an abundant number, since it is smaller than the sum of its proper divisors (462310320).

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

155254320 is a wasteful number, since it uses less digits than its factorization.

155254320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 155254320 is about 12460.1091487996. The cubic root of 155254320 is about 537.4621657162.

The spelling of 155254320 in words is "one hundred fifty-five million, two hundred fifty-four thousand, three hundred twenty".