136957305 has 16 divisors (see below), whose sum is σ = 219852864. Its totient is φ = 72803520.

The previous prime is 136957291. The next prime is 136957309. The reversal of 136957305 is 503759631.

136957305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136957305 - 2⁶ = 136957241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136957309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10266 + ... + 19475.

It is an arithmetic number, because the mean of its divisors is an integer number (13740804).

Almost surely, 2^136957305 is an apocalyptic number.

136957305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136957305 is a deficient number, since it is larger than the sum of its proper divisors (82895559).

136957305 is a wasteful number, since it uses less digits than its factorization.

136957305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30056.

The product of its (nonzero) digits is 85050, while the sum is 39.

The square root of 136957305 is about 11702.8759285912. The cubic root of 136957305 is about 515.4601160218.

The spelling of 136957305 in words is "one hundred thirty-six million, nine hundred fifty-seven thousand, three hundred five".