136015690 has 16 divisors (see below), whose sum is σ = 247254120. Its totient is φ = 53867200.

The previous prime is 136015681. The next prime is 136015703. The reversal of 136015690 is 96510631.

136015690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 134119561 + 1896129 = 11581^2 + 1377^2 .

It is a super-2 number, since 2×136015690² = 37000535852352200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66325 + ... + 68344.

Almost surely, 2^136015690 is an apocalyptic number.

136015690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136015690 is a deficient number, since it is larger than the sum of its proper divisors (111238430).

136015690 is a wasteful number, since it uses less digits than its factorization.

136015690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134777.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 136015690 is about 11662.5764734899. The cubic root of 136015690 is about 514.2760935517.

It can be divided in two parts, 13601 and 5690, that added together give a palindrome (19291).

The spelling of 136015690 in words is "one hundred thirty-six million, fifteen thousand, six hundred ninety".