1180023997 has 2 divisors, whose sum is σ = 1180023998. Its totient is φ = 1180023996.

The previous prime is 1180023991. The next prime is 1180024019. The reversal of 1180023997 is 7993200811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 801682596 + 378341401 = 28314^2 + 19451^2 .

It is a cyclic number.

It is not a de Polignac number, because 1180023997 - 2³ = 1180023989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1180023991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590011998 + 590011999.

It is an arithmetic number, because the mean of its divisors is an integer number (590011999).

Almost surely, 2^1180023997 is an apocalyptic number.

It is an amenable number.

1180023997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180023997 is an equidigital number, since it uses as much as digits as its factorization.

1180023997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1180023997 is about 34351.4773626987. The cubic root of 1180023997 is about 1056.7289685303.

The spelling of 1180023997 in words is "one billion, one hundred eighty million, twenty-three thousand, nine hundred ninety-seven".