142740169 has 16 divisors (see below), whose sum is σ = 169372224. Its totient is φ = 118584000.

The previous prime is 142740137. The next prime is 142740173. The reversal of 142740169 is 961047241.

It is a cyclic number.

It is not a de Polignac number, because 142740169 - 2⁵ = 142740137 is a prime.

It is a super-2 number, since 2×142740169² = 40749511692297122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142740469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9502 + ... + 19384.

It is an arithmetic number, because the mean of its divisors is an integer number (10585764).

Almost surely, 2^142740169 is an apocalyptic number.

It is an amenable number.

142740169 is a deficient number, since it is larger than the sum of its proper divisors (26632055).

142740169 is a wasteful number, since it uses less digits than its factorization.

142740169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 142740169 is about 11947.3917237194. The cubic root of 142740169 is about 522.6152385793.

The spelling of 142740169 in words is "one hundred forty-two million, seven hundred forty thousand, one hundred sixty-nine".