136973615 has 8 divisors (see below), whose sum is σ = 165319488. Its totient is φ = 108944800.

The previous prime is 136973611. The next prime is 136973647. The reversal of 136973615 is 516379631.

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

It is not a de Polignac number, because 136973615 - 2² = 136973611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136973611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78311 + ... + 80040.

It is an arithmetic number, because the mean of its divisors is an integer number (20664936).

Almost surely, 2^136973615 is an apocalyptic number.

136973615 is a deficient number, since it is larger than the sum of its proper divisors (28345873).

136973615 is a wasteful number, since it uses less digits than its factorization.

136973615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158529.

The product of its digits is 102060, while the sum is 41.

The square root of 136973615 is about 11703.5727451065. The cubic root of 136973615 is about 515.4805769501.

The spelling of 136973615 in words is "one hundred thirty-six million, nine hundred seventy-three thousand, six hundred fifteen".