9142807 has 4 divisors (see below), whose sum is σ = 9150840. Its totient is φ = 9134776.

The previous prime is 9142747. The next prime is 9142813. The reversal of 9142807 is 7082419.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7082419 = 59 ⋅120041.

It is a cyclic number.

It is not a de Polignac number, because 9142807 - 2¹⁵ = 9110039 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 (9142207) 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, 1957 + ... + 4702.

It is an arithmetic number, because the mean of its divisors is an integer number (2287710).

Almost surely, 2^9142807 is an apocalyptic number.

9142807 is a deficient number, since it is larger than the sum of its proper divisors (8033).

9142807 is a wasteful number, since it uses less digits than its factorization.

9142807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8032.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 9142807 is about 3023.7074924668. The cubic root of 9142807 is about 209.1028011624.

It can be divided in two parts, 914 and 2807, that added together give a square (3721 = 61²).

The spelling of 9142807 in words is "nine million, one hundred forty-two thousand, eight hundred seven".