142121310 has 16 divisors (see below), whose sum is σ = 341091216. Its totient is φ = 37899008.

The previous prime is 142121299. The next prime is 142121323. The reversal of 142121310 is 13121241.

142121310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142121310² = 40396933512232200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 142121310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368659 + ... + 2368718.

It is an arithmetic number, because the mean of its divisors is an integer number (21318201).

Almost surely, 2^142121310 is an apocalyptic number.

142121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142121310 is an abundant number, since it is smaller than the sum of its proper divisors (198969906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142121310 is a wasteful number, since it uses less digits than its factorization.

142121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737387.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 142121310 is about 11921.4642557028. The cubic root of 142121310 is about 521.8588673225.

Adding to 142121310 its reverse (13121241), we get a palindrome (155242551).

The spelling of 142121310 in words is "one hundred forty-two million, one hundred twenty-one thousand, three hundred ten".