142165644 has 24 divisors (see below), whose sum is σ = 331914240. Its totient is φ = 47360784.

The previous prime is 142165631. The next prime is 142165669. The reversal of 142165644 is 446561241.

142165644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142165644² = 40422140667869472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34317 + ... + 38235.

It is an arithmetic number, because the mean of its divisors is an integer number (13829760).

Almost surely, 2^142165644 is an apocalyptic number.

It is an amenable number.

142165644 is an abundant number, since it is smaller than the sum of its proper divisors (189748596).

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

142165644 is a wasteful number, since it uses less digits than its factorization.

142165644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949 (or 6947 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 142165644 is about 11923.3235299559. The cubic root of 142165644 is about 521.9131253967.

The spelling of 142165644 in words is "one hundred forty-two million, one hundred sixty-five thousand, six hundred forty-four".