7142252731 has 2 divisors, whose sum is σ = 7142252732. Its totient is φ = 7142252730.

The previous prime is 7142252659. The next prime is 7142252749. The reversal of 7142252731 is 1372522417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7142252731 - 2²³ = 7133864123 is a prime.

It is a super-2 number, since 2×7142252731² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7142252431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571126365 + 3571126366.

It is an arithmetic number, because the mean of its divisors is an integer number (3571126366).

Almost surely, 2^7142252731 is an apocalyptic number.

7142252731 is a deficient number, since it is larger than the sum of its proper divisors (1).

7142252731 is an equidigital number, since it uses as much as digits as its factorization.

7142252731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 34.

The square root of 7142252731 is about 84511.8496484369. The cubic root of 7142252731 is about 1925.8024635237.

The spelling of 7142252731 in words is "seven billion, one hundred forty-two million, two hundred fifty-two thousand, seven hundred thirty-one".