151142731 has 2 divisors, whose sum is σ = 151142732. Its totient is φ = 151142730.

The previous prime is 151142723. The next prime is 151142749. The reversal of 151142731 is 137241151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151142731 - 2³ = 151142723 is a prime.

It is a super-2 number, since 2×151142731² = 45688250268276722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151142696 and 151142705.

It is not a weakly prime, because it can be changed into another prime (151142791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75571365 + 75571366.

It is an arithmetic number, because the mean of its divisors is an integer number (75571366).

Almost surely, 2^151142731 is an apocalyptic number.

151142731 is a deficient number, since it is larger than the sum of its proper divisors (1).

151142731 is an equidigital number, since it uses as much as digits as its factorization.

151142731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 25.

The square root of 151142731 is about 12294.0119977166. The cubic root of 151142731 is about 532.6751314747.

Adding to 151142731 its reverse (137241151), we get a palindrome (288383882).

The spelling of 151142731 in words is "one hundred fifty-one million, one hundred forty-two thousand, seven hundred thirty-one".