651115151 has 2 divisors, whose sum is σ = 651115152. Its totient is φ = 651115150.

The previous prime is 651115133. The next prime is 651115187. The reversal of 651115151 is 151511156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651115151 - 2²² = 646920847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 651115151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651115051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325557575 + 325557576.

It is an arithmetic number, because the mean of its divisors is an integer number (325557576).

Almost surely, 2^651115151 is an apocalyptic number.

651115151 is a deficient number, since it is larger than the sum of its proper divisors (1).

651115151 is an equidigital number, since it uses as much as digits as its factorization.

651115151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 750, while the sum is 26.

The square root of 651115151 is about 25516.9581063261. The cubic root of 651115151 is about 866.7342004737.

The spelling of 651115151 in words is "six hundred fifty-one million, one hundred fifteen thousand, one hundred fifty-one".