151242331 has 2 divisors, whose sum is σ = 151242332. Its totient is φ = 151242330.

The previous prime is 151242323. The next prime is 151242359. The reversal of 151242331 is 133242151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151242331 - 2³ = 151242323 is a prime.

It is a super-2 number, since 2×151242331² = 45748485372627122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151249331) 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 as a sum of consecutive naturals, namely, 75621165 + 75621166.

It is an arithmetic number, because the mean of its divisors is an integer number (75621166).

Almost surely, 2^151242331 is an apocalyptic number.

151242331 is a deficient number, since it is larger than the sum of its proper divisors (1).

151242331 is an equidigital number, since it uses as much as digits as its factorization.

151242331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 151242331 is about 12298.0620831089. The cubic root of 151242331 is about 532.7921131583.

Adding to 151242331 its reverse (133242151), we get a palindrome (284484482).

The spelling of 151242331 in words is "one hundred fifty-one million, two hundred forty-two thousand, three hundred thirty-one".