136290723 has 8 divisors (see below), whose sum is σ = 183594768. Its totient is φ = 89923584.

The previous prime is 136290701. The next prime is 136290757. The reversal of 136290723 is 327092631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136290723 - 2¹⁷ = 136159651 is a prime.

It is a super-2 number, since 2×136290723² = 37150322351725458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136290793) 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 in 7 ways as a sum of consecutive naturals, for example, 233886 + ... + 234467.

It is an arithmetic number, because the mean of its divisors is an integer number (22949346).

Almost surely, 2^136290723 is an apocalyptic number.

136290723 is a deficient number, since it is larger than the sum of its proper divisors (47304045).

136290723 is an equidigital number, since it uses as much as digits as its factorization.

136290723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468453.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 136290723 is about 11674.3617812710. The cubic root of 136290723 is about 514.6224939512.

The spelling of 136290723 in words is "one hundred thirty-six million, two hundred ninety thousand, seven hundred twenty-three".