142772663 has 4 divisors (see below), whose sum is σ = 155752008. Its totient is φ = 129793320.

The previous prime is 142772659. The next prime is 142772687. The reversal of 142772663 is 366277241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142772663 - 2² = 142772659 is a prime.

It is a super-2 number, since 2×142772663² = 40768066600223138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142772653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6489656 + ... + 6489677.

It is an arithmetic number, because the mean of its divisors is an integer number (38938002).

Almost surely, 2^142772663 is an apocalyptic number.

142772663 is a deficient number, since it is larger than the sum of its proper divisors (12979345).

142772663 is a wasteful number, since it uses less digits than its factorization.

142772663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12979344.

The product of its digits is 84672, while the sum is 38.

The square root of 142772663 is about 11948.7515247410. The cubic root of 142772663 is about 522.6548923811.

The spelling of 142772663 in words is "one hundred forty-two million, seven hundred seventy-two thousand, six hundred sixty-three".