142762881 has 8 divisors (see below), whose sum is σ = 194777440. Its totient is φ = 92961792.

The previous prime is 142762877. The next prime is 142762891. The reversal of 142762881 is 188267241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142762881 - 2² = 142762877 is a prime.

It is a super-2 number, since 2×142762881² = 40762480382840322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142762871) 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, 553216 + ... + 553473.

It is an arithmetic number, because the mean of its divisors is an integer number (24347180).

Almost surely, 2^142762881 is an apocalyptic number.

It is an amenable number.

142762881 is a deficient number, since it is larger than the sum of its proper divisors (52014559).

142762881 is a wasteful number, since it uses less digits than its factorization.

142762881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106735.

The product of its digits is 43008, while the sum is 39.

The square root of 142762881 is about 11948.3421862617. The cubic root of 142762881 is about 522.6429556261.

The spelling of 142762881 in words is "one hundred forty-two million, seven hundred sixty-two thousand, eight hundred eighty-one".