151531530 has 32 divisors (see below), whose sum is σ = 363999744. Its totient is φ = 40372416.

The previous prime is 151531519. The next prime is 151531577. The reversal of 151531530 is 35135151.

It is a self number, because there is not a number n which added to its sum of digits gives 151531530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63112 + ... + 65468.

It is an arithmetic number, because the mean of its divisors is an integer number (11374992).

Almost surely, 2^151531530 is an apocalyptic number.

151531530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151531530 is an abundant number, since it is smaller than the sum of its proper divisors (212468214).

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

151531530 is a wasteful number, since it uses less digits than its factorization.

151531530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510.

The product of its (nonzero) digits is 1125, while the sum is 24.

The square root of 151531530 is about 12309.8143771545. The cubic root of 151531530 is about 533.1314908957.

Adding to 151531530 its reverse (35135151), we get a palindrome (186666681).

The spelling of 151531530 in words is "one hundred fifty-one million, five hundred thirty-one thousand, five hundred thirty".