151531500 has 48 divisors (see below), whose sum is σ = 441264096. Its totient is φ = 40408000.

The previous prime is 151531493. The next prime is 151531507. The reversal of 151531500 is 5135151.

It is an interprime number because it is at equal distance from previous prime (151531493) and next prime (151531507).

It is not an unprimeable number, because it can be changed into a prime (151531507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49011 + ... + 52010.

It is an arithmetic number, because the mean of its divisors is an integer number (9193002).

Almost surely, 2^151531500 is an apocalyptic number.

151531500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151531500 is an abundant number, since it is smaller than the sum of its proper divisors (289732596).

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

151531500 is a wasteful number, since it uses less digits than its factorization.

151531500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101043 (or 101031 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 151531500 is about 12309.8131586146. The cubic root of 151531500 is about 533.1314557129.

Adding to 151531500 its reverse (5135151), we get a palindrome (156666651).

It can be divided in two parts, 15153 and 1500, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 151531500 in words is "one hundred fifty-one million, five hundred thirty-one thousand, five hundred".