142951644 has 36 divisors (see below), whose sum is σ = 394201080. Its totient is φ = 43318560.

The previous prime is 142951639. The next prime is 142951673. The reversal of 142951644 is 446159241.

142951644 is a `hidden beast` number, since 1 + 4 + 2 + 9 + 5 + 1 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 142951599 and 142951608.

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 11 ways as a sum of consecutive naturals, for example, 180099 + ... + 180890.

It is an arithmetic number, because the mean of its divisors is an integer number (10950030).

Almost surely, 2^142951644 is an apocalyptic number.

It is an amenable number.

142951644 is an abundant number, since it is smaller than the sum of its proper divisors (251249436).

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

142951644 is a wasteful number, since it uses less digits than its factorization.

142951644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361010 (or 361005 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 142951644 is about 11956.2387062153. The cubic root of 142951644 is about 522.8732026907.

The spelling of 142951644 in words is "one hundred forty-two million, nine hundred fifty-one thousand, six hundred forty-four".