651354149 has 2 divisors, whose sum is σ = 651354150. Its totient is φ = 651354148.

The previous prime is 651354083. The next prime is 651354199. The reversal of 651354149 is 941453156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 564062500 + 87291649 = 23750^2 + 9343^2 .

It is a cyclic number.

It is not a de Polignac number, because 651354149 - 2²⁴ = 634576933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651354199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325677074 + 325677075.

It is an arithmetic number, because the mean of its divisors is an integer number (325677075).

Almost surely, 2^651354149 is an apocalyptic number.

It is an amenable number.

651354149 is a deficient number, since it is larger than the sum of its proper divisors (1).

651354149 is an equidigital number, since it uses as much as digits as its factorization.

651354149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 651354149 is about 25521.6407975663. The cubic root of 651354149 is about 866.8402351744.

The spelling of 651354149 in words is "six hundred fifty-one million, three hundred fifty-four thousand, one hundred forty-nine".