142692661 has 2 divisors, whose sum is σ = 142692662. Its totient is φ = 142692660.

The previous prime is 142692637. The next prime is 142692689. The reversal of 142692661 is 166296241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141848100 + 844561 = 11910^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 142692661 - 2⁵ = 142692629 is a prime.

It is a super-2 number, since 2×142692661² = 40722391006521842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142692661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142692601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71346330 + 71346331.

It is an arithmetic number, because the mean of its divisors is an integer number (71346331).

Almost surely, 2^142692661 is an apocalyptic number.

It is an amenable number.

142692661 is a deficient number, since it is larger than the sum of its proper divisors (1).

142692661 is an equidigital number, since it uses as much as digits as its factorization.

142692661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 142692661 is about 11945.4033418717. The cubic root of 142692661 is about 522.5572517258.

The spelling of 142692661 in words is "one hundred forty-two million, six hundred ninety-two thousand, six hundred sixty-one".