751013993 has 2 divisors, whose sum is σ = 751013994. Its totient is φ = 751013992.

The previous prime is 751013971. The next prime is 751014023. The reversal of 751013993 is 399310157.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 740275264 + 10738729 = 27208^2 + 3277^2 .

It is a cyclic number.

It is not a de Polignac number, because 751013993 - 2⁶ = 751013929 is a prime.

It is not a weakly prime, because it can be changed into another prime (751013093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375506996 + 375506997.

It is an arithmetic number, because the mean of its divisors is an integer number (375506997).

Almost surely, 2^751013993 is an apocalyptic number.

It is an amenable number.

751013993 is a deficient number, since it is larger than the sum of its proper divisors (1).

751013993 is an equidigital number, since it uses as much as digits as its factorization.

751013993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 751013993 is about 27404.6345168112. The cubic root of 751013993 is about 908.9695670417.

The spelling of 751013993 in words is "seven hundred fifty-one million, thirteen thousand, nine hundred ninety-three".