3149921293 has 4 divisors (see below), whose sum is σ = 3163101120. Its totient is φ = 3136741468.

The previous prime is 3149921287. The next prime is 3149921339. The reversal of 3149921293 is 3921299413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3921299413 = 49757 ⋅78809.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3149921293 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 (3149921273) 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, 6589555 + ... + 6590032.

It is an arithmetic number, because the mean of its divisors is an integer number (790775280).

Almost surely, 2^3149921293 is an apocalyptic number.

It is an amenable number.

3149921293 is a deficient number, since it is larger than the sum of its proper divisors (13179827).

3149921293 is a wasteful number, since it uses less digits than its factorization.

3149921293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13179826.

The product of its digits is 104976, while the sum is 43.

The square root of 3149921293 is about 56124.1596195435. The cubic root of 3149921293 is about 1465.8849996367.

The spelling of 3149921293 in words is "three billion, one hundred forty-nine million, nine hundred twenty-one thousand, two hundred ninety-three".