142956165 has 32 divisors (see below), whose sum is σ = 250459776. Its totient is φ = 69052160.

The previous prime is 142956137. The next prime is 142956169. The reversal of 142956165 is 561659241.

It is not a de Polignac number, because 142956165 - 2⁸ = 142955909 is a prime.

It is a super-2 number, since 2×142956165² = 40872930223014450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142956169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46867 + ... + 49823.

It is an arithmetic number, because the mean of its divisors is an integer number (7826868).

Almost surely, 2^142956165 is an apocalyptic number.

142956165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142956165 is a deficient number, since it is larger than the sum of its proper divisors (107503611).

142956165 is a wasteful number, since it uses less digits than its factorization.

142956165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269.

The product of its digits is 64800, while the sum is 39.

The square root of 142956165 is about 11956.4277691959. The cubic root of 142956165 is about 522.8787147757.

The spelling of 142956165 in words is "one hundred forty-two million, nine hundred fifty-six thousand, one hundred sixty-five".