142520542 has 8 divisors (see below), whose sum is σ = 213926832. Its totient is φ = 71211600.

The previous prime is 142520527. The next prime is 142520557. The reversal of 142520542 is 245025241.

It is an interprime number because it is at equal distance from previous prime (142520527) and next prime (142520557).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20559 + ... + 26602.

It is an arithmetic number, because the mean of its divisors is an integer number (26740854).

Almost surely, 2^142520542 is an apocalyptic number.

142520542 is a deficient number, since it is larger than the sum of its proper divisors (71406290).

142520542 is a wasteful number, since it uses less digits than its factorization.

142520542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48674.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 142520542 is about 11938.1967650060. The cubic root of 142520542 is about 522.3470605392.

Adding to 142520542 its reverse (245025241), we get a palindrome (387545783).

The spelling of 142520542 in words is "one hundred forty-two million, five hundred twenty thousand, five hundred forty-two".