136949903 has 8 divisors (see below), whose sum is σ = 138432480. Its totient is φ = 135475200.

The previous prime is 136949899. The next prime is 136949927. The reversal of 136949903 is 309949631.

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 136949903 - 2² = 136949899 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 (136949993) 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, 37043 + ... + 40571.

It is an arithmetic number, because the mean of its divisors is an integer number (17304060).

Almost surely, 2^136949903 is an apocalyptic number.

136949903 is a deficient number, since it is larger than the sum of its proper divisors (1482577).

136949903 is a wasteful number, since it uses less digits than its factorization.

136949903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 136949903 is about 11702.5596772672. The cubic root of 136949903 is about 515.4508296618.

The spelling of 136949903 in words is "one hundred thirty-six million, nine hundred forty-nine thousand, nine hundred three".