3142931 has 4 divisors (see below), whose sum is σ = 3428664. Its totient is φ = 2857200.

The previous prime is 3142907. The next prime is 3142939. The reversal of 3142931 is 1392413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1392413 = 11 ⋅126583.

It is a cyclic number.

It is not a de Polignac number, because 3142931 - 2¹⁴ = 3126547 is a prime.

It is a super-2 number, since 2×3142931² = 19756030541522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3142897 and 3142906.

It is not an unprimeable number, because it can be changed into a prime (3142939) 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, 142850 + ... + 142871.

It is an arithmetic number, because the mean of its divisors is an integer number (857166).

Almost surely, 2^3142931 is an apocalyptic number.

3142931 is a deficient number, since it is larger than the sum of its proper divisors (285733).

3142931 is a wasteful number, since it uses less digits than its factorization.

3142931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285732.

The product of its digits is 648, while the sum is 23.

The square root of 3142931 is about 1772.8313512571. The cubic root of 3142931 is about 146.4799834425.

The spelling of 3142931 in words is "three million, one hundred forty-two thousand, nine hundred thirty-one".