1348636957 has 2 divisors, whose sum is σ = 1348636958. Its totient is φ = 1348636956.

The previous prime is 1348636943. The next prime is 1348636963. The reversal of 1348636957 is 7596368431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1339999236 + 8637721 = 36606^2 + 2939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1348636957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1348636987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674318478 + 674318479.

It is an arithmetic number, because the mean of its divisors is an integer number (674318479).

Almost surely, 2^1348636957 is an apocalyptic number.

It is an amenable number.

1348636957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1348636957 is an equidigital number, since it uses as much as digits as its factorization.

1348636957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 52.

The square root of 1348636957 is about 36723.7927915949. The cubic root of 1348636957 is about 1104.8373618664.

The spelling of 1348636957 in words is "one billion, three hundred forty-eight million, six hundred thirty-six thousand, nine hundred fifty-seven".