151402639 has 2 divisors, whose sum is σ = 151402640. Its totient is φ = 151402638.

The previous prime is 151402633. The next prime is 151402661. The reversal of 151402639 is 936204151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151402639 - 2¹⁵ = 151369871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151402639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151402633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75701319 + 75701320.

It is an arithmetic number, because the mean of its divisors is an integer number (75701320).

Almost surely, 2^151402639 is an apocalyptic number.

151402639 is a deficient number, since it is larger than the sum of its proper divisors (1).

151402639 is an equidigital number, since it uses as much as digits as its factorization.

151402639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 151402639 is about 12304.5779691950. The cubic root of 151402639 is about 532.9802894853.

The spelling of 151402639 in words is "one hundred fifty-one million, four hundred two thousand, six hundred thirty-nine".