136949915 has 8 divisors (see below), whose sum is σ = 167125680. Its totient is φ = 107702752.

The previous prime is 136949899. The next prime is 136949927. The reversal of 136949915 is 519949631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 136949915 - 2⁴ = 136949899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136949915.

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, 231824 + ... + 232413.

It is an arithmetic number, because the mean of its divisors is an integer number (20890710).

Almost surely, 2^136949915 is an apocalyptic number.

136949915 is a deficient number, since it is larger than the sum of its proper divisors (30175765).

136949915 is an equidigital number, since it uses as much as digits as its factorization.

136949915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464301.

The product of its digits is 262440, while the sum is 47.

The square root of 136949915 is about 11702.5601899755. The cubic root of 136949915 is about 515.4508447170.

The spelling of 136949915 in words is "one hundred thirty-six million, nine hundred forty-nine thousand, nine hundred fifteen".