142625569 has 2 divisors, whose sum is σ = 142625570. Its totient is φ = 142625568.

The previous prime is 142625557. The next prime is 142625617. The reversal of 142625569 is 965526241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90497169 + 52128400 = 9513^2 + 7220^2 .

It is a cyclic number.

It is not a de Polignac number, because 142625569 - 2¹⁷ = 142494497 is a prime.

It is a super-2 number, since 2×142625569² = 40684105865147522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142625669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71312784 + 71312785.

It is an arithmetic number, because the mean of its divisors is an integer number (71312785).

Almost surely, 2^142625569 is an apocalyptic number.

It is an amenable number.

142625569 is a deficient number, since it is larger than the sum of its proper divisors (1).

142625569 is an equidigital number, since it uses as much as digits as its factorization.

142625569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 142625569 is about 11942.5947348137. The cubic root of 142625569 is about 522.4753392969.

The spelling of 142625569 in words is "one hundred forty-two million, six hundred twenty-five thousand, five hundred sixty-nine".