3142991845 has 32 divisors (see below), whose sum is σ = 4350528000. Its totient is φ = 2135206656.

The previous prime is 3142991843. The next prime is 3142991869. The reversal of 3142991845 is 5481992413.

It is a cyclic number.

It is not a de Polignac number, because 3142991845 - 2¹ = 3142991843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3142991795 and 3142991804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142991843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3790891 + ... + 3791719.

It is an arithmetic number, because the mean of its divisors is an integer number (135954000).

Almost surely, 2^3142991845 is an apocalyptic number.

3142991845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3142991845 is a deficient number, since it is larger than the sum of its proper divisors (1207536155).

3142991845 is a wasteful number, since it uses less digits than its factorization.

3142991845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717.

The product of its digits is 311040, while the sum is 46.

The square root of 3142991845 is about 56062.3924302201. The cubic root of 3142991845 is about 1464.8092868726.

The spelling of 3142991845 in words is "three billion, one hundred forty-two million, nine hundred ninety-one thousand, eight hundred forty-five".