1213703597 has 2 divisors, whose sum is σ = 1213703598. Its totient is φ = 1213703596.

The previous prime is 1213703549. The next prime is 1213703639. The reversal of 1213703597 is 7953073121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104166441 + 109537156 = 33229^2 + 10466^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213703597 - 2¹⁶ = 1213638061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213703597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213703497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606851798 + 606851799.

It is an arithmetic number, because the mean of its divisors is an integer number (606851799).

Almost surely, 2^1213703597 is an apocalyptic number.

It is an amenable number.

1213703597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213703597 is an equidigital number, since it uses as much as digits as its factorization.

1213703597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 1213703597 is about 34838.2490518683. The cubic root of 1213703597 is about 1066.6883363545.

The spelling of 1213703597 in words is "one billion, two hundred thirteen million, seven hundred three thousand, five hundred ninety-seven".