142505113 has 2 divisors, whose sum is σ = 142505114. Its totient is φ = 142505112.

The previous prime is 142505087. The next prime is 142505123. The reversal of 142505113 is 311505241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96983104 + 45522009 = 9848^2 + 6747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142505113 is a prime.

It is a super-2 number, since 2×142505113² = 40615414462285538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142505123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71252556 + 71252557.

It is an arithmetic number, because the mean of its divisors is an integer number (71252557).

Almost surely, 2^142505113 is an apocalyptic number.

It is an amenable number.

142505113 is a deficient number, since it is larger than the sum of its proper divisors (1).

142505113 is an equidigital number, since it uses as much as digits as its factorization.

142505113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 142505113 is about 11937.5505443956. The cubic root of 142505113 is about 522.3282104293.

The spelling of 142505113 in words is "one hundred forty-two million, five hundred five thousand, one hundred thirteen".