142564540 has 12 divisors (see below), whose sum is σ = 299385576. Its totient is φ = 57025808.

The previous prime is 142564537. The next prime is 142564573. The reversal of 142564540 is 45465241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 3564094 + ... + 3564133.

It is an arithmetic number, because the mean of its divisors is an integer number (24948798).

Almost surely, 2^142564540 is an apocalyptic number.

142564540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142564540 is an abundant number, since it is smaller than the sum of its proper divisors (156821036).

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

142564540 is a wasteful number, since it uses less digits than its factorization.

142564540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128236 (or 7128234 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 142564540 is about 11940.0393634192. The cubic root of 142564540 is about 522.4008068532.

The spelling of 142564540 in words is "one hundred forty-two million, five hundred sixty-four thousand, five hundred forty".