142045881 has 16 divisors (see below), whose sum is σ = 202635840. Its totient is φ = 88240320.

The previous prime is 142045879. The next prime is 142045901. The reversal of 142045881 is 188540241.

It is not a de Polignac number, because 142045881 - 2¹ = 142045879 is a prime.

It is a super-2 number, since 2×142045881² = 40354064618132322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142045801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16950 + ... + 23903.

It is an arithmetic number, because the mean of its divisors is an integer number (12664740).

Almost surely, 2^142045881 is an apocalyptic number.

It is an amenable number.

142045881 is a deficient number, since it is larger than the sum of its proper divisors (60589959).

142045881 is a wasteful number, since it uses less digits than its factorization.

142045881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40936.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 142045881 is about 11918.3002563285. The cubic root of 142045881 is about 521.7665277609.

The spelling of 142045881 in words is "one hundred forty-two million, forty-five thousand, eight hundred eighty-one".