142520413 has 16 divisors (see below), whose sum is σ = 169044480. Its totient is φ = 117565056.

The previous prime is 142520407. The next prime is 142520419. The reversal of 142520413 is 314025241.

It is an interprime number because it is at equal distance from previous prime (142520407) and next prime (142520419).

It is not a de Polignac number, because 142520413 - 2¹³ = 142512221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142520419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73545 + ... + 75457.

It is an arithmetic number, because the mean of its divisors is an integer number (10565280).

Almost surely, 2^142520413 is an apocalyptic number.

It is an amenable number.

142520413 is a deficient number, since it is larger than the sum of its proper divisors (26524067).

142520413 is a wasteful number, since it uses less digits than its factorization.

142520413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 142520413 is about 11938.1913621788. The cubic root of 142520413 is about 522.3469029414.

Adding to 142520413 its reverse (314025241), we get a palindrome (456545654).

The spelling of 142520413 in words is "one hundred forty-two million, five hundred twenty thousand, four hundred thirteen".