1140055957 has 2 divisors, whose sum is σ = 1140055958. Its totient is φ = 1140055956.

The previous prime is 1140055949. The next prime is 1140055967. The reversal of 1140055957 is 7595500411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 870899121 + 269156836 = 29511^2 + 16406^2 .

It is an emirp because it is prime and its reverse (7595500411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1140055957 - 2³ = 1140055949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140055967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570027978 + 570027979.

It is an arithmetic number, because the mean of its divisors is an integer number (570027979).

Almost surely, 2^1140055957 is an apocalyptic number.

It is an amenable number.

1140055957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140055957 is an equidigital number, since it uses as much as digits as its factorization.

1140055957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 1140055957 is about 33764.7146737537. The cubic root of 1140055957 is about 1044.6610186889.

The spelling of 1140055957 in words is "one billion, one hundred forty million, fifty-five thousand, nine hundred fifty-seven".