136897598 has 4 divisors (see below), whose sum is σ = 205346400. Its totient is φ = 68448798.

The previous prime is 136897591. The next prime is 136897637. The reversal of 136897598 is 895798631.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136897591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34224398 + ... + 34224401.

It is an arithmetic number, because the mean of its divisors is an integer number (51336600).

Almost surely, 2^136897598 is an apocalyptic number.

136897598 is a deficient number, since it is larger than the sum of its proper divisors (68448802).

136897598 is an equidigital number, since it uses as much as digits as its factorization.

136897598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68448801.

The product of its digits is 3265920, while the sum is 56.

The square root of 136897598 is about 11700.3246963492. The cubic root of 136897598 is about 515.3851996075.

The spelling of 136897598 in words is "one hundred thirty-six million, eight hundred ninety-seven thousand, five hundred ninety-eight".