649361151 has 16 divisors (see below), whose sum is σ = 966584320. Its totient is φ = 430851960.

The previous prime is 649361147. The next prime is 649361161. The reversal of 649361151 is 151163946.

649361151 is a `hidden beast` number, since 649 + 3 + 6 + 1 + 1 + 5 + 1 = 666.

It is not a de Polignac number, because 649361151 - 2² = 649361147 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 (649361161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51295 + ... + 62688.

It is an arithmetic number, because the mean of its divisors is an integer number (60411520).

Almost surely, 2^649361151 is an apocalyptic number.

649361151 is a deficient number, since it is larger than the sum of its proper divisors (317223169).

649361151 is a wasteful number, since it uses less digits than its factorization.

649361151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114203 (or 114197 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 649361151 is about 25482.5656282879. The cubic root of 649361151 is about 865.9552195019.

The spelling of 649361151 in words is "six hundred forty-nine million, three hundred sixty-one thousand, one hundred fifty-one".