137628899 has 2 divisors, whose sum is σ = 137628900. Its totient is φ = 137628898.

The previous prime is 137628893. The next prime is 137628901. The reversal of 137628899 is 998826731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137628899 - 2¹² = 137624803 is a prime.

Together with 137628901, 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 137628899.

It is not a weakly prime, because it can be changed into another prime (137628893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68814449 + 68814450.

It is an arithmetic number, because the mean of its divisors is an integer number (68814450).

Almost surely, 2^137628899 is an apocalyptic number.

137628899 is a deficient number, since it is larger than the sum of its proper divisors (1).

137628899 is an equidigital number, since it uses as much as digits as its factorization.

137628899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 53.

The square root of 137628899 is about 11731.5343838732. The cubic root of 137628899 is about 516.3012920523.

The spelling of 137628899 in words is "one hundred thirty-seven million, six hundred twenty-eight thousand, eight hundred ninety-nine".