142680407 has 4 divisors (see below), whose sum is σ = 145998600. Its totient is φ = 139362216.

The previous prime is 142680401. The next prime is 142680409. The reversal of 142680407 is 704086241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704086241 = 73 ⋅9645017.

It is a cyclic number.

It is not a de Polignac number, because 142680407 - 2⁸ = 142680151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142680401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1659032 + ... + 1659117.

It is an arithmetic number, because the mean of its divisors is an integer number (36499650).

Almost surely, 2^142680407 is an apocalyptic number.

142680407 is a deficient number, since it is larger than the sum of its proper divisors (3318193).

142680407 is an equidigital number, since it uses as much as digits as its factorization.

142680407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318192.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 142680407 is about 11944.8904138966. The cubic root of 142680407 is about 522.5422927695.

The spelling of 142680407 in words is "one hundred forty-two million, six hundred eighty thousand, four hundred seven".