142315451 has 6 divisors (see below), whose sum is σ = 147055356. Its totient is φ = 137723700.

The previous prime is 142315417. The next prime is 142315487. The reversal of 142315451 is 154513241.

It is not a de Polignac number, because 142315451 - 2¹⁴ = 142299067 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 142315451.

It is not an unprimeable number, because it can be changed into a prime (142315351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73085 + ... + 75006.

It is an arithmetic number, because the mean of its divisors is an integer number (24509226).

Almost surely, 2^142315451 is an apocalyptic number.

142315451 is a deficient number, since it is larger than the sum of its proper divisors (4739905).

142315451 is an equidigital number, since it uses as much as digits as its factorization.

142315451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148153 (or 148122 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 142315451 is about 11929.6039749859. The cubic root of 142315451 is about 522.0963829699.

Adding to 142315451 its reverse (154513241), we get a palindrome (296828692).

The spelling of 142315451 in words is "one hundred forty-two million, three hundred fifteen thousand, four hundred fifty-one".