142499965 has 8 divisors (see below), whose sum is σ = 173803608. Its totient is φ = 112130880.

The previous prime is 142499957. The next prime is 142499977. The reversal of 142499965 is 569994241.

It can be written as a sum of positive squares in 4 ways, for example, as 1792921 + 140707044 = 1339^2 + 11862^2 .

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

It is not a de Polignac number, because 142499965 - 2³ = 142499957 is a prime.

It is a Duffinian number.

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, 233302 + ... + 233911.

It is an arithmetic number, because the mean of its divisors is an integer number (21725451).

Almost surely, 2^142499965 is an apocalyptic number.

It is an amenable number.

142499965 is a deficient number, since it is larger than the sum of its proper divisors (31303643).

142499965 is an equidigital number, since it uses as much as digits as its factorization.

142499965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467279.

The product of its digits is 699840, while the sum is 49.

The square root of 142499965 is about 11937.3349203246. The cubic root of 142499965 is about 522.3219206480.

The spelling of 142499965 in words is "one hundred forty-two million, four hundred ninety-nine thousand, nine hundred sixty-five".