1349620637 has 2 divisors, whose sum is σ = 1349620638. Its totient is φ = 1349620636.

The previous prime is 1349620627. The next prime is 1349620691. The reversal of 1349620637 is 7360269431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1349166361 + 454276 = 36731^2 + 674^2 .

It is a cyclic number.

It is not a de Polignac number, because 1349620637 - 2²⁰ = 1348572061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1349620594 and 1349620603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1349620627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674810318 + 674810319.

It is an arithmetic number, because the mean of its divisors is an integer number (674810319).

Almost surely, 2^1349620637 is an apocalyptic number.

It is an amenable number.

1349620637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1349620637 is an equidigital number, since it uses as much as digits as its factorization.

1349620637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 1349620637 is about 36737.1833024798. The cubic root of 1349620637 is about 1105.1059150607.

The spelling of 1349620637 in words is "one billion, three hundred forty-nine million, six hundred twenty thousand, six hundred thirty-seven".