142162307 has 4 divisors (see below), whose sum is σ = 162471216. Its totient is φ = 121853400.

The previous prime is 142162303. The next prime is 142162309. The reversal of 142162307 is 703261241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703261241 = 83 ⋅8473027.

It is a cyclic number.

It is not a de Polignac number, because 142162307 - 2² = 142162303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142162301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10154444 + ... + 10154457.

It is an arithmetic number, because the mean of its divisors is an integer number (40617804).

Almost surely, 2^142162307 is an apocalyptic number.

142162307 is a deficient number, since it is larger than the sum of its proper divisors (20308909).

142162307 is an equidigital number, since it uses as much as digits as its factorization.

142162307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20308908.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 142162307 is about 11923.1835933194. The cubic root of 142162307 is about 521.9090418087.

The spelling of 142162307 in words is "one hundred forty-two million, one hundred sixty-two thousand, three hundred seven".