142552307 has 4 divisors (see below), whose sum is σ = 150055080. Its totient is φ = 135049536.

The previous prime is 142552301. The next prime is 142552331. The reversal of 142552307 is 703255241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703255241 = 13 ⋅54096557.

It is a cyclic number.

It is not a de Polignac number, because 142552307 - 2⁸ = 142552051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142552307.

It is not an unprimeable number, because it can be changed into a prime (142552301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3751358 + ... + 3751395.

It is an arithmetic number, because the mean of its divisors is an integer number (37513770).

Almost surely, 2^142552307 is an apocalyptic number.

142552307 is a deficient number, since it is larger than the sum of its proper divisors (7502773).

142552307 is an equidigital number, since it uses as much as digits as its factorization.

142552307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502772.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 142552307 is about 11939.5270844368. The cubic root of 142552307 is about 522.3858645871.

The spelling of 142552307 in words is "one hundred forty-two million, five hundred fifty-two thousand, three hundred seven".