142677401 has 2 divisors, whose sum is σ = 142677402. Its totient is φ = 142677400.

The previous prime is 142677391. The next prime is 142677421. The reversal of 142677401 is 104776241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136422400 + 6255001 = 11680^2 + 2501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142677401 is a prime.

It is a super-2 number, since 2×142677401² = 40713681512229602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (142677421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71338700 + 71338701.

It is an arithmetic number, because the mean of its divisors is an integer number (71338701).

Almost surely, 2^142677401 is an apocalyptic number.

It is an amenable number.

142677401 is a deficient number, since it is larger than the sum of its proper divisors (1).

142677401 is an equidigital number, since it uses as much as digits as its factorization.

142677401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 142677401 is about 11944.7645853738. The cubic root of 142677401 is about 522.5386230921.

The spelling of 142677401 in words is "one hundred forty-two million, six hundred seventy-seven thousand, four hundred one".