1342120757 has 2 divisors, whose sum is σ = 1342120758. Its totient is φ = 1342120756.

The previous prime is 1342120753. The next prime is 1342120763. The reversal of 1342120757 is 7570212431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1180678321 + 161442436 = 34361^2 + 12706^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342120757 - 2² = 1342120753 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342120753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671060378 + 671060379.

It is an arithmetic number, because the mean of its divisors is an integer number (671060379).

Almost surely, 2^1342120757 is an apocalyptic number.

It is an amenable number.

1342120757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342120757 is an equidigital number, since it uses as much as digits as its factorization.

1342120757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 1342120757 is about 36634.9663163486. The cubic root of 1342120757 is about 1103.0550765727.

The spelling of 1342120757 in words is "one billion, three hundred forty-two million, one hundred twenty thousand, seven hundred fifty-seven".