137646949 has 8 divisors (see below), whose sum is σ = 150248448. Its totient is φ = 125060160.

The previous prime is 137646937. The next prime is 137646953. The reversal of 137646949 is 949646731.

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 137646949 - 2¹⁷ = 137515877 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 (137646959) 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, 27229 + ... + 31885.

It is an arithmetic number, because the mean of its divisors is an integer number (18781056).

Almost surely, 2^137646949 is an apocalyptic number.

It is an amenable number.

137646949 is a deficient number, since it is larger than the sum of its proper divisors (12601499).

137646949 is a wasteful number, since it uses less digits than its factorization.

137646949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

The product of its digits is 979776, while the sum is 49.

The square root of 137646949 is about 11732.3036527359. The cubic root of 137646949 is about 516.3238619995.

The spelling of 137646949 in words is "one hundred thirty-seven million, six hundred forty-six thousand, nine hundred forty-nine".