136403797 has 2 divisors, whose sum is σ = 136403798. Its totient is φ = 136403796.

The previous prime is 136403741. The next prime is 136403807. The reversal of 136403797 is 797304631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105144516 + 31259281 = 10254^2 + 5591^2 .

It is a cyclic number.

It is not a de Polignac number, because 136403797 - 2⁷ = 136403669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136403737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68201898 + 68201899.

It is an arithmetic number, because the mean of its divisors is an integer number (68201899).

Almost surely, 2^136403797 is an apocalyptic number.

It is an amenable number.

136403797 is a deficient number, since it is larger than the sum of its proper divisors (1).

136403797 is an equidigital number, since it uses as much as digits as its factorization.

136403797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 136403797 is about 11679.2036115482. The cubic root of 136403797 is about 514.7647739670.

The spelling of 136403797 in words is "one hundred thirty-six million, four hundred three thousand, seven hundred ninety-seven".