142252740 has 96 divisors (see below), whose sum is σ = 505800960. Its totient is φ = 32514048.

The previous prime is 142252699. The next prime is 142252741. The reversal of 142252740 is 47252241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142252741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15037 + ... + 22596.

It is an arithmetic number, because the mean of its divisors is an integer number (5268760).

Almost surely, 2^142252740 is an apocalyptic number.

142252740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142252740 is an abundant number, since it is smaller than the sum of its proper divisors (363548220).

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

142252740 is a wasteful number, since it uses less digits than its factorization.

142252740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37658 (or 37650 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 142252740 is about 11926.9753080989. The cubic root of 142252740 is about 522.0196848172.

The spelling of 142252740 in words is "one hundred forty-two million, two hundred fifty-two thousand, seven hundred forty".