142452140 has 12 divisors (see below), whose sum is σ = 299149536. Its totient is φ = 56980848.

The previous prime is 142452131. The next prime is 142452157. The reversal of 142452140 is 41254241.

142452140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142452140² = 40585224381159200, which contains 22 as substring.

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, 3561284 + ... + 3561323.

It is an arithmetic number, because the mean of its divisors is an integer number (24929128).

Almost surely, 2^142452140 is an apocalyptic number.

142452140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142452140 is an abundant number, since it is smaller than the sum of its proper divisors (156697396).

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

142452140 is a wasteful number, since it uses less digits than its factorization.

142452140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122616 (or 7122614 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 142452140 is about 11935.3315831610. The cubic root of 142452140 is about 522.2634812396.

The spelling of 142452140 in words is "one hundred forty-two million, four hundred fifty-two thousand, one hundred forty".