7142994961 has 2 divisors, whose sum is σ = 7142994962. Its totient is φ = 7142994960.

The previous prime is 7142994899. The next prime is 7142994997. The reversal of 7142994961 is 1694992417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4749828561 + 2393166400 = 68919^2 + 48920^2 .

It is a cyclic number.

It is not a de Polignac number, because 7142994961 - 2¹³ = 7142986769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7142994899 and 7142994908.

It is not a weakly prime, because it can be changed into another prime (7142994161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571497480 + 3571497481.

It is an arithmetic number, because the mean of its divisors is an integer number (3571497481).

Almost surely, 2^7142994961 is an apocalyptic number.

It is an amenable number.

7142994961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7142994961 is an equidigital number, since it uses as much as digits as its factorization.

7142994961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 52.

The square root of 7142994961 is about 84516.2408120475. The cubic root of 7142994961 is about 1925.8691716481.

The spelling of 7142994961 in words is "seven billion, one hundred forty-two million, nine hundred ninety-four thousand, nine hundred sixty-one".