651631151 has 4 divisors (see below), whose sum is σ = 651683232. Its totient is φ = 651579072.

The previous prime is 651631117. The next prime is 651631217. The reversal of 651631151 is 151136156.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 651631151 - 2¹⁴ = 651614767 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 (651631051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5306 + ... + 36488.

It is an arithmetic number, because the mean of its divisors is an integer number (162920808).

Almost surely, 2^651631151 is an apocalyptic number.

651631151 is a deficient number, since it is larger than the sum of its proper divisors (52081).

651631151 is a wasteful number, since it uses less digits than its factorization.

651631151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52080.

The product of its digits is 2700, while the sum is 29.

The square root of 651631151 is about 25527.0670269814. The cubic root of 651631151 is about 866.9630984171.

The spelling of 651631151 in words is "six hundred fifty-one million, six hundred thirty-one thousand, one hundred fifty-one".