649835151 has 16 divisors (see below), whose sum is σ = 992659200. Its totient is φ = 370421568.

The previous prime is 649835143. The next prime is 649835159. The reversal of 649835151 is 151538946.

It is an interprime number because it is at equal distance from previous prime (649835143) and next prime (649835159).

It is not a de Polignac number, because 649835151 - 2³ = 649835143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649835159) 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, 29241 + ... + 46418.

It is an arithmetic number, because the mean of its divisors is an integer number (62041200).

Almost surely, 2^649835151 is an apocalyptic number.

649835151 is a deficient number, since it is larger than the sum of its proper divisors (342824049).

649835151 is a wasteful number, since it uses less digits than its factorization.

649835151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76078.

The product of its digits is 129600, while the sum is 42.

The square root of 649835151 is about 25491.8644080813. The cubic root of 649835151 is about 866.1658690722.

It can be divided in two parts, 64983 and 5151, that multiplied together give a palindrome (334727433).

The spelling of 649835151 in words is "six hundred forty-nine million, eight hundred thirty-five thousand, one hundred fifty-one".