142308937 has 4 divisors (see below), whose sum is σ = 142333636. Its totient is φ = 142284240.

The previous prime is 142308931. The next prime is 142308967. The reversal of 142308937 is 739803241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 739803241 = 179 ⋅4132979.

It can be written as a sum of positive squares in 2 ways, for example, as 63027721 + 79281216 = 7939^2 + 8904^2 .

It is a cyclic number.

It is not a de Polignac number, because 142308937 - 2¹⁹ = 141784649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142308896 and 142308905.

It is not an unprimeable number, because it can be changed into a prime (142308931) 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, 1387 + ... + 16927.

It is an arithmetic number, because the mean of its divisors is an integer number (35583409).

Almost surely, 2^142308937 is an apocalyptic number.

It is an amenable number.

142308937 is a deficient number, since it is larger than the sum of its proper divisors (24699).

142308937 is an equidigital number, since it uses as much as digits as its factorization.

142308937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24698.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 142308937 is about 11929.3309535782. The cubic root of 142308937 is about 522.0884171266.

The spelling of 142308937 in words is "one hundred forty-two million, three hundred eight thousand, nine hundred thirty-seven".