151247431 has 2 divisors, whose sum is σ = 151247432. Its totient is φ = 151247430.

The previous prime is 151247423. The next prime is 151247443. The reversal of 151247431 is 134742151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151247431 - 2³ = 151247423 is a prime.

It is a super-2 number, since 2×151247431² = 45751570768199522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151247431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151247461) 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, 75623715 + 75623716.

It is an arithmetic number, because the mean of its divisors is an integer number (75623716).

Almost surely, 2^151247431 is an apocalyptic number.

151247431 is a deficient number, since it is larger than the sum of its proper divisors (1).

151247431 is an equidigital number, since it uses as much as digits as its factorization.

151247431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 151247431 is about 12298.2694311029. The cubic root of 151247431 is about 532.7981018019.

Adding to 151247431 its reverse (134742151), we get a palindrome (285989582).

The spelling of 151247431 in words is "one hundred fifty-one million, two hundred forty-seven thousand, four hundred thirty-one".