142166651 has 24 divisors (see below), whose sum is σ = 163021824. Its totient is φ = 123750000.

The previous prime is 142166641. The next prime is 142166701. The reversal of 142166651 is 156661241.

It is not a de Polignac number, because 142166651 - 2¹⁸ = 141904507 is a prime.

It is a super-2 number, since 2×142166651² = 40422713313111602, 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 (142166621) 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, 566276 + ... + 566526.

It is an arithmetic number, because the mean of its divisors is an integer number (6792576).

Almost surely, 2^142166651 is an apocalyptic number.

142166651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142166651 is a deficient number, since it is larger than the sum of its proper divisors (20855173).

142166651 is a wasteful number, since it uses less digits than its factorization.

142166651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 444 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 142166651 is about 11923.3657580400. The cubic root of 142166651 is about 521.9143576805.

The spelling of 142166651 in words is "one hundred forty-two million, one hundred sixty-six thousand, six hundred fifty-one".