142604261 has 2 divisors, whose sum is σ = 142604262. Its totient is φ = 142604260.

The previous prime is 142604237. The next prime is 142604269. The reversal of 142604261 is 162406241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100600900 + 42003361 = 10030^2 + 6481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142604261 is a prime.

It is a super-2 number, since 2×142604261² = 40671950510712242, 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 142604261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142604269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71302130 + 71302131.

It is an arithmetic number, because the mean of its divisors is an integer number (71302131).

Almost surely, 2^142604261 is an apocalyptic number.

It is an amenable number.

142604261 is a deficient number, since it is larger than the sum of its proper divisors (1).

142604261 is an equidigital number, since it uses as much as digits as its factorization.

142604261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 142604261 is about 11941.7026005507. The cubic root of 142604261 is about 522.4493190466.

The spelling of 142604261 in words is "one hundred forty-two million, six hundred four thousand, two hundred sixty-one".