151397639 has 2 divisors, whose sum is σ = 151397640. Its totient is φ = 151397638.

The previous prime is 151397581. The next prime is 151397641. The reversal of 151397639 is 936793151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 151397639 - 2⁸ = 151397383 is a prime.

Together with 151397641, it forms a pair of twin primes.

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 151397639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151397039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75698819 + 75698820.

It is an arithmetic number, because the mean of its divisors is an integer number (75698820).

Almost surely, 2^151397639 is an apocalyptic number.

151397639 is a deficient number, since it is larger than the sum of its proper divisors (1).

151397639 is an equidigital number, since it uses as much as digits as its factorization.

151397639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153090, while the sum is 44.

The square root of 151397639 is about 12304.3747911058. The cubic root of 151397639 is about 532.9744222807.

The spelling of 151397639 in words is "one hundred fifty-one million, three hundred ninety-seven thousand, six hundred thirty-nine".