1629315157 has 2 divisors, whose sum is σ = 1629315158. Its totient is φ = 1629315156.

The previous prime is 1629315109. The next prime is 1629315167. The reversal of 1629315157 is 7515139261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1506526596 + 122788561 = 38814^2 + 11081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1629315157 is a prime.

It is a super-4 number, since 4×1629315157⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1629315167) 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, 814657578 + 814657579.

It is an arithmetic number, because the mean of its divisors is an integer number (814657579).

Almost surely, 2^1629315157 is an apocalyptic number.

It is an amenable number.

1629315157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1629315157 is an equidigital number, since it uses as much as digits as its factorization.

1629315157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 40.

The square root of 1629315157 is about 40364.7761916253. The cubic root of 1629315157 is about 1176.7070782594.

The spelling of 1629315157 in words is "one billion, six hundred twenty-nine million, three hundred fifteen thousand, one hundred fifty-seven".