142571836 has 12 divisors (see below), whose sum is σ = 272182680. Its totient is φ = 64805360.

The previous prime is 142571833. The next prime is 142571837. The reversal of 142571836 is 638175241.

It is a junction number, because it is equal to n+sod(n) for n = 142571795 and 142571804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142571833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620091 + ... + 1620178.

It is an arithmetic number, because the mean of its divisors is an integer number (22681890).

Almost surely, 2^142571836 is an apocalyptic number.

It is an amenable number.

142571836 is a deficient number, since it is larger than the sum of its proper divisors (129610844).

142571836 is a wasteful number, since it uses less digits than its factorization.

142571836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240284 (or 3240282 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 142571836 is about 11940.3448861413. The cubic root of 142571836 is about 522.4097183054.

The spelling of 142571836 in words is "one hundred forty-two million, five hundred seventy-one thousand, eight hundred thirty-six".