151031530 has 16 divisors (see below), whose sum is σ = 292769064. Its totient is φ = 55765440.

The previous prime is 151031497. The next prime is 151031537. The reversal of 151031530 is 35130151.

It can be written as a sum of positive squares in 4 ways, for example, as 125821089 + 25210441 = 11217^2 + 5021^2 .

It is a junction number, because it is equal to n+sod(n) for n = 151031498 and 151031507.

It is not an unprimeable number, because it can be changed into a prime (151031537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580761 + ... + 581020.

Almost surely, 2^151031530 is an apocalyptic number.

151031530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151031530 is a deficient number, since it is larger than the sum of its proper divisors (141737534).

151031530 is a wasteful number, since it uses less digits than its factorization.

151031530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161801.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 151031530 is about 12289.4885979849. The cubic root of 151031530 is about 532.5444635079.

Adding to 151031530 its reverse (35130151), we get a palindrome (186161681).

The spelling of 151031530 in words is "one hundred fifty-one million, thirty-one thousand, five hundred thirty".