142947536 has 20 divisors (see below), whose sum is σ = 277302564. Its totient is φ = 71385600.

The previous prime is 142947521. The next prime is 142947547. The reversal of 142947536 is 635749241.

It can be written as a sum of positive squares in 2 ways, for example, as 25441936 + 117505600 = 5044^2 + 10840^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142947493 and 142947502.

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, 9026 + ... + 19166.

Almost surely, 2^142947536 is an apocalyptic number.

142947536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142947536 is a deficient number, since it is larger than the sum of its proper divisors (134355028).

142947536 is a wasteful number, since it uses less digits than its factorization.

142947536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11030 (or 11024 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 142947536 is about 11956.0669118235. The cubic root of 142947536 is about 522.8681940420.

The spelling of 142947536 in words is "one hundred forty-two million, nine hundred forty-seven thousand, five hundred thirty-six".