151637791 has 2 divisors, whose sum is σ = 151637792. Its totient is φ = 151637790.

The previous prime is 151637789. The next prime is 151637813. The reversal of 151637791 is 197736151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151637791 - 2¹ = 151637789 is a prime.

Together with 151637789, 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 (151637711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75818895 + 75818896.

It is an arithmetic number, because the mean of its divisors is an integer number (75818896).

Almost surely, 2^151637791 is an apocalyptic number.

151637791 is a deficient number, since it is larger than the sum of its proper divisors (1).

151637791 is an equidigital number, since it uses as much as digits as its factorization.

151637791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 40.

The square root of 151637791 is about 12314.1297297048. The cubic root of 151637791 is about 533.2560806943.

The spelling of 151637791 in words is "one hundred fifty-one million, six hundred thirty-seven thousand, seven hundred ninety-one".