142544386 has 16 divisors (see below), whose sum is σ = 230312448. Its totient is φ = 65973600.

The previous prime is 142544383. The next prime is 142544411. The reversal of 142544386 is 683445241.

It is not an unprimeable number, because it can be changed into a prime (142544383) 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, 48555 + ... + 51406.

It is an arithmetic number, because the mean of its divisors is an integer number (14394528).

Almost surely, 2^142544386 is an apocalyptic number.

142544386 is a deficient number, since it is larger than the sum of its proper divisors (87768062).

142544386 is a wasteful number, since it uses less digits than its factorization.

142544386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100017.

The product of its digits is 92160, while the sum is 37.

The square root of 142544386 is about 11939.1953665228. The cubic root of 142544386 is about 522.3761888521.

The spelling of 142544386 in words is "one hundred forty-two million, five hundred forty-four thousand, three hundred eighty-six".