1240132057 has 2 divisors, whose sum is σ = 1240132058. Its totient is φ = 1240132056.

The previous prime is 1240132037. The next prime is 1240132081. The reversal of 1240132057 is 7502310421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030345801 + 209786256 = 32099^2 + 14484^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240132057 - 2¹¹ = 1240130009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240132027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620066028 + 620066029.

It is an arithmetic number, because the mean of its divisors is an integer number (620066029).

Almost surely, 2^1240132057 is an apocalyptic number.

It is an amenable number.

1240132057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240132057 is an equidigital number, since it uses as much as digits as its factorization.

1240132057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1240132057 is about 35215.5087567963. The cubic root of 1240132057 is about 1074.3752077348.

Adding to 1240132057 its reverse (7502310421), we get a palindrome (8742442478).

The spelling of 1240132057 in words is "one billion, two hundred forty million, one hundred thirty-two thousand, fifty-seven".