142910644 has 12 divisors (see below), whose sum is σ = 255415104. Its totient is φ = 69934904.

The previous prime is 142910639. The next prime is 142910683. The reversal of 142910644 is 446019241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379894 + ... + 380269.

It is an arithmetic number, because the mean of its divisors is an integer number (21284592).

Almost surely, 2^142910644 is an apocalyptic number.

It is an amenable number.

142910644 is a deficient number, since it is larger than the sum of its proper divisors (112504460).

142910644 is a wasteful number, since it uses less digits than its factorization.

142910644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760214 (or 760212 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 142910644 is about 11954.5239972154. The cubic root of 142910644 is about 522.8232094422.

Adding to 142910644 its reverse (446019241), we get a palindrome (588929885).

The spelling of 142910644 in words is "one hundred forty-two million, nine hundred ten thousand, six hundred forty-four".