142813130 has 8 divisors (see below), whose sum is σ = 257063652. Its totient is φ = 57125248.

The previous prime is 142813123. The next prime is 142813133. The reversal of 142813130 is 31318241.

It can be written as a sum of positive squares in 2 ways, for example, as 138744841 + 4068289 = 11779^2 + 2017^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142813096 and 142813105.

It is not an unprimeable number, because it can be changed into a prime (142813133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7140647 + ... + 7140666.

Almost surely, 2^142813130 is an apocalyptic number.

142813130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142813130 is a deficient number, since it is larger than the sum of its proper divisors (114250522).

142813130 is a wasteful number, since it uses less digits than its factorization.

142813130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281320.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 142813130 is about 11950.4447615978. Note that the first 3 decimals coincide. The cubic root of 142813130 is about 522.7042675606.

The spelling of 142813130 in words is "one hundred forty-two million, eight hundred thirteen thousand, one hundred thirty".