142661750 has 64 divisors (see below), whose sum is σ = 333006336. Its totient is φ = 44460000.

The previous prime is 142661741. The next prime is 142661819. The reversal of 142661750 is 57166241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15545 + ... + 22955.

It is an arithmetic number, because the mean of its divisors is an integer number (5203224).

Almost surely, 2^142661750 is an apocalyptic number.

142661750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142661750 is an abundant number, since it is smaller than the sum of its proper divisors (190344586).

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

142661750 is a wasteful number, since it uses less digits than its factorization.

142661750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7446 (or 7436 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 142661750 is about 11944.1094268263. The cubic root of 142661750 is about 522.5195157656.

The spelling of 142661750 in words is "one hundred forty-two million, six hundred sixty-one thousand, seven hundred fifty".