151581280 has 24 divisors (see below), whose sum is σ = 358111152. Its totient is φ = 60632448.

The previous prime is 151581277. The next prime is 151581281. The reversal of 151581280 is 82185151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151581281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473532 + ... + 473851.

It is an arithmetic number, because the mean of its divisors is an integer number (14921298).

Almost surely, 2^151581280 is an apocalyptic number.

151581280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151581280 is an abundant number, since it is smaller than the sum of its proper divisors (206529872).

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

151581280 is an equidigital number, since it uses as much as digits as its factorization.

151581280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947398 (or 947390 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 31.

The square root of 151581280 is about 12311.8349566586. The cubic root of 151581280 is about 533.1898294465.

The spelling of 151581280 in words is "one hundred fifty-one million, five hundred eighty-one thousand, two hundred eighty".