142129750 has 64 divisors (see below), whose sum is σ = 306244224. Its totient is φ = 48384000.

The previous prime is 142129727. The next prime is 142129751. The reversal of 142129750 is 57921241.

142129750 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142129751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421582 + ... + 421918.

It is an arithmetic number, because the mean of its divisors is an integer number (4785066).

Almost surely, 2^142129750 is an apocalyptic number.

142129750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142129750 is an abundant number, since it is smaller than the sum of its proper divisors (164114474).

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

142129750 is a wasteful number, since it uses less digits than its factorization.

142129750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 142129750 is about 11921.8182338098. The cubic root of 142129750 is about 521.8691974686.

The spelling of 142129750 in words is "one hundred forty-two million, one hundred twenty-nine thousand, seven hundred fifty".