142744100 has 36 divisors (see below), whose sum is σ = 310646784. Its totient is φ = 56933280.

The previous prime is 142744097. The next prime is 142744117. The reversal of 142744100 is 1447241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36437 + ... + 40163.

Almost surely, 2^142744100 is an apocalyptic number.

142744100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142744100 is an abundant number, since it is smaller than the sum of its proper divisors (167902684).

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

142744100 is a wasteful number, since it uses less digits than its factorization.

142744100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 142744100 is about 11947.5562354818. The cubic root of 142744100 is about 522.6200360647.

The spelling of 142744100 in words is "one hundred forty-two million, seven hundred forty-four thousand, one hundred".