1397908151 has 2 divisors, whose sum is σ = 1397908152. Its totient is φ = 1397908150.

The previous prime is 1397908129. The next prime is 1397908153. The reversal of 1397908151 is 1518097931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1397908151 - 2⁶ = 1397908087 is a prime.

Together with 1397908153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1397908153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698954075 + 698954076.

It is an arithmetic number, because the mean of its divisors is an integer number (698954076).

Almost surely, 2^1397908151 is an apocalyptic number.

1397908151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397908151 is an equidigital number, since it uses as much as digits as its factorization.

1397908151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 44.

The square root of 1397908151 is about 37388.6099099712. The cubic root of 1397908151 is about 1118.1314909300.

The spelling of 1397908151 in words is "one billion, three hundred ninety-seven million, nine hundred eight thousand, one hundred fifty-one".