142646540 has 12 divisors (see below), whose sum is σ = 299557776. Its totient is φ = 57058608.

The previous prime is 142646519. The next prime is 142646579. The reversal of 142646540 is 45646241.

142646540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 142646497 and 142646506.

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, 3566144 + ... + 3566183.

It is an arithmetic number, because the mean of its divisors is an integer number (24963148).

Almost surely, 2^142646540 is an apocalyptic number.

142646540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142646540 is an abundant number, since it is smaller than the sum of its proper divisors (156911236).

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

142646540 is a wasteful number, since it uses less digits than its factorization.

142646540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132336 (or 7132334 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 142646540 is about 11943.4726943214. The cubic root of 142646540 is about 522.5009454895.

The spelling of 142646540 in words is "one hundred forty-two million, six hundred forty-six thousand, five hundred forty".