1397064751 has 2 divisors, whose sum is σ = 1397064752. Its totient is φ = 1397064750.

The previous prime is 1397064733. The next prime is 1397064769. The reversal of 1397064751 is 1574607931.

It is a balanced prime because it is at equal distance from previous prime (1397064733) and next prime (1397064769).

It is a cyclic number.

It is not a de Polignac number, because 1397064751 - 2¹³ = 1397056559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1397064698 and 1397064707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1397067751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698532375 + 698532376.

It is an arithmetic number, because the mean of its divisors is an integer number (698532376).

Almost surely, 2^1397064751 is an apocalyptic number.

1397064751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397064751 is an equidigital number, since it uses as much as digits as its factorization.

1397064751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 1397064751 is about 37377.3293722278. The cubic root of 1397064751 is about 1117.9065782475.

The spelling of 1397064751 in words is "one billion, three hundred ninety-seven million, sixty-four thousand, seven hundred fifty-one".