1012223957 has 2 divisors, whose sum is σ = 1012223958. Its totient is φ = 1012223956.

The previous prime is 1012223941. The next prime is 1012224011. The reversal of 1012223957 is 7593222101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010349796 + 1874161 = 31786^2 + 1369^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012223957 - 2⁴ = 1012223941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012223557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506111978 + 506111979.

It is an arithmetic number, because the mean of its divisors is an integer number (506111979).

Almost surely, 2^1012223957 is an apocalyptic number.

It is an amenable number.

1012223957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012223957 is an equidigital number, since it uses as much as digits as its factorization.

1012223957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1012223957 is about 31815.4672604380. The cubic root of 1012223957 is about 1004.0581613820.

The spelling of 1012223957 in words is "one billion, twelve million, two hundred twenty-three thousand, nine hundred fifty-seven".