142680749 has 8 divisors (see below), whose sum is σ = 143557920. Its totient is φ = 141806896.

The previous prime is 142680743. The next prime is 142680793. The reversal of 142680749 is 947086241.

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 142680749 - 2²⁰ = 141632173 is a prime.

It is a super-2 number, since 2×142680749² = 40715592270402002, 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 (142680743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208562 + ... + 209244.

It is an arithmetic number, because the mean of its divisors is an integer number (17944740).

Almost surely, 2^142680749 is an apocalyptic number.

It is an amenable number.

142680749 is a deficient number, since it is larger than the sum of its proper divisors (877171).

142680749 is an equidigital number, since it uses as much as digits as its factorization.

142680749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 142680749 is about 11944.9047296326. The cubic root of 142680749 is about 522.5427102744.

The spelling of 142680749 in words is "one hundred forty-two million, six hundred eighty thousand, seven hundred forty-nine".