151240631 has 2 divisors, whose sum is σ = 151240632. Its totient is φ = 151240630.

The previous prime is 151240601. The next prime is 151240667. The reversal of 151240631 is 136042151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151240631 - 2⁶ = 151240567 is a prime.

It is a super-2 number, since 2×151240631² = 45747456930556322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 151240597 and 151240606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151240601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75620315 + 75620316.

It is an arithmetic number, because the mean of its divisors is an integer number (75620316).

Almost surely, 2^151240631 is an apocalyptic number.

151240631 is a deficient number, since it is larger than the sum of its proper divisors (1).

151240631 is an equidigital number, since it uses as much as digits as its factorization.

151240631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 151240631 is about 12297.9929663340. The cubic root of 151240631 is about 532.7901169139.

Adding to 151240631 its reverse (136042151), we get a palindrome (287282782).

The spelling of 151240631 in words is "one hundred fifty-one million, two hundred forty thousand, six hundred thirty-one".