632679149 has 2 divisors, whose sum is σ = 632679150. Its totient is φ = 632679148.

The previous prime is 632679143. The next prime is 632679197. The reversal of 632679149 is 941976236.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 495952900 + 136726249 = 22270^2 + 11693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632679149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (632679143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316339574 + 316339575.

It is an arithmetic number, because the mean of its divisors is an integer number (316339575).

Almost surely, 2^632679149 is an apocalyptic number.

It is an amenable number.

632679149 is a deficient number, since it is larger than the sum of its proper divisors (1).

632679149 is an equidigital number, since it uses as much as digits as its factorization.

632679149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 632679149 is about 25153.1141014388. The cubic root of 632679149 is about 858.4753719841.

The spelling of 632679149 in words is "six hundred thirty-two million, six hundred seventy-nine thousand, one hundred forty-nine".