142934761 has 2 divisors, whose sum is σ = 142934762. Its totient is φ = 142934760.

The previous prime is 142934731. The next prime is 142934767. The reversal of 142934761 is 167439241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142659136 + 275625 = 11944^2 + 525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142934761 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142934761.

It is not a weakly prime, because it can be changed into another prime (142934767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71467380 + 71467381.

It is an arithmetic number, because the mean of its divisors is an integer number (71467381).

Almost surely, 2^142934761 is an apocalyptic number.

It is an amenable number.

142934761 is a deficient number, since it is larger than the sum of its proper divisors (1).

142934761 is an equidigital number, since it uses as much as digits as its factorization.

142934761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 142934761 is about 11955.5326522912. The cubic root of 142934761 is about 522.8526176043.

The spelling of 142934761 in words is "one hundred forty-two million, nine hundred thirty-four thousand, seven hundred sixty-one".