1356913457 has 2 divisors, whose sum is σ = 1356913458. Its totient is φ = 1356913456.

The previous prime is 1356913433. The next prime is 1356913489. The reversal of 1356913457 is 7543196531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1304365456 + 52548001 = 36116^2 + 7249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356913457 - 2¹⁸ = 1356651313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1356913427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678456728 + 678456729.

It is an arithmetic number, because the mean of its divisors is an integer number (678456729).

Almost surely, 2^1356913457 is an apocalyptic number.

It is an amenable number.

1356913457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356913457 is an equidigital number, since it uses as much as digits as its factorization.

1356913457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 44.

The square root of 1356913457 is about 36836.3062344747. The cubic root of 1356913457 is about 1107.0928599401.

The spelling of 1356913457 in words is "one billion, three hundred fifty-six million, nine hundred thirteen thousand, four hundred fifty-seven".