142146965 has 8 divisors (see below), whose sum is σ = 170705880. Its totient is φ = 113631232.

The previous prime is 142146947. The next prime is 142146971. The reversal of 142146965 is 569641241.

It can be written as a sum of positive squares in 4 ways, for example, as 1036324 + 141110641 = 1018^2 + 11879^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 142146965 - 2⁸ = 142146709 is a prime.

It is a super-2 number, since 2×142146965² = 40411519317422450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3044 + ... + 17133.

It is an arithmetic number, because the mean of its divisors is an integer number (21338235).

Almost surely, 2^142146965 is an apocalyptic number.

It is an amenable number.

142146965 is a deficient number, since it is larger than the sum of its proper divisors (28558915).

142146965 is a wasteful number, since it uses less digits than its factorization.

142146965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21591.

The product of its digits is 51840, while the sum is 38.

The square root of 142146965 is about 11922.5402075229. The cubic root of 142146965 is about 521.8902665165.

It can be divided in two parts, 142 and 146965, that multiplied together give a triangular number (20869030 = T₆₄₆₀).

The spelling of 142146965 in words is "one hundred forty-two million, one hundred forty-six thousand, nine hundred sixty-five".