136951901 has 2 divisors, whose sum is σ = 136951902. Its totient is φ = 136951900.

The previous prime is 136951883. The next prime is 136951939. The reversal of 136951901 is 109159631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123187801 + 13764100 = 11099^2 + 3710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136951901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136951961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68475950 + 68475951.

It is an arithmetic number, because the mean of its divisors is an integer number (68475951).

Almost surely, 2^136951901 is an apocalyptic number.

It is an amenable number.

136951901 is a deficient number, since it is larger than the sum of its proper divisors (1).

136951901 is an equidigital number, since it uses as much as digits as its factorization.

136951901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 136951901 is about 11702.6450428952. The cubic root of 136951901 is about 515.4533363345.

The spelling of 136951901 in words is "one hundred thirty-six million, nine hundred fifty-one thousand, nine hundred one".