142971044 has 24 divisors (see below), whose sum is σ = 264855360. Its totient is φ = 67413024.

The previous prime is 142971043. The next prime is 142971061. The reversal of 142971044 is 440179241.

It is a self number, because there is not a number n which added to its sum of digits gives 142971044.

It is not an unprimeable number, because it can be changed into a prime (142971041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9344 + ... + 19319.

It is an arithmetic number, because the mean of its divisors is an integer number (11035640).

Almost surely, 2^142971044 is an apocalyptic number.

It is an amenable number.

142971044 is a deficient number, since it is larger than the sum of its proper divisors (121884316).

142971044 is a wasteful number, since it uses less digits than its factorization.

142971044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28739 (or 28737 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 142971044 is about 11957.0499706240. The cubic root of 142971044 is about 522.8968547011.

The spelling of 142971044 in words is "one hundred forty-two million, nine hundred seventy-one thousand, forty-four".