142561275 has 24 divisors (see below), whose sum is σ = 248109120. Its totient is φ = 72030240.

The previous prime is 142561213. The next prime is 142561277. The reversal of 142561275 is 572165241.

It is not a de Polignac number, because 142561275 - 2⁷ = 142561147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142561277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48597 + ... + 51446.

It is an arithmetic number, because the mean of its divisors is an integer number (10337880).

Almost surely, 2^142561275 is an apocalyptic number.

142561275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142561275 is a deficient number, since it is larger than the sum of its proper divisors (105547845).

142561275 is a wasteful number, since it uses less digits than its factorization.

142561275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100075 (or 100070 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 142561275 is about 11939.9026377940. The cubic root of 142561275 is about 522.3968188310.

The spelling of 142561275 in words is "one hundred forty-two million, five hundred sixty-one thousand, two hundred seventy-five".