142652780 has 24 divisors (see below), whose sum is σ = 317193408. Its totient is φ = 53704448.

The previous prime is 142652773. The next prime is 142652789. The reversal of 142652780 is 87256241.

It is a self number, because there is not a number n which added to its sum of digits gives 142652780.

It is not an unprimeable number, because it can be changed into a prime (142652789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209444 + ... + 210123.

It is an arithmetic number, because the mean of its divisors is an integer number (13216392).

Almost surely, 2^142652780 is an apocalyptic number.

142652780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142652780 is an abundant number, since it is smaller than the sum of its proper divisors (174540628).

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

142652780 is a wasteful number, since it uses less digits than its factorization.

142652780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419593 (or 419591 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 142652780 is about 11943.7339220195. The cubic root of 142652780 is about 522.5085642240.

The spelling of 142652780 in words is "one hundred forty-two million, six hundred fifty-two thousand, seven hundred eighty".