136397654 has 4 divisors (see below), whose sum is σ = 204596484. Its totient is φ = 68198826.

The previous prime is 136397627. The next prime is 136397671. The reversal of 136397654 is 456793631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34099412 + ... + 34099415.

It is an arithmetic number, because the mean of its divisors is an integer number (51149121).

Almost surely, 2^136397654 is an apocalyptic number.

136397654 is a deficient number, since it is larger than the sum of its proper divisors (68198830).

136397654 is an equidigital number, since it uses as much as digits as its factorization.

136397654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68198829.

The product of its digits is 408240, while the sum is 44.

The square root of 136397654 is about 11678.9406197651. The cubic root of 136397654 is about 514.7570463046.

The spelling of 136397654 in words is "one hundred thirty-six million, three hundred ninety-seven thousand, six hundred fifty-four".