137100649 has 4 divisors (see below), whose sum is σ = 156686464. Its totient is φ = 117514836.

The previous prime is 137100553. The next prime is 137100659. The reversal of 137100649 is 946001731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137100649 - 2⁷ = 137100521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137100649.

It is not an unprimeable number, because it can be changed into a prime (137100659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9792897 + ... + 9792910.

It is an arithmetic number, because the mean of its divisors is an integer number (39171616).

Almost surely, 2^137100649 is an apocalyptic number.

It is an amenable number.

137100649 is a deficient number, since it is larger than the sum of its proper divisors (19585815).

137100649 is an equidigital number, since it uses as much as digits as its factorization.

137100649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19585814.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 137100649 is about 11708.9986335297. The cubic root of 137100649 is about 515.6398857974.

The spelling of 137100649 in words is "one hundred thirty-seven million, one hundred thousand, six hundred forty-nine".