3165139949 has 8 divisors (see below), whose sum is σ = 3190750080. Its totient is φ = 3139570656.

The previous prime is 3165139937. The next prime is 3165139961. The reversal of 3165139949 is 9499315613.

It is an interprime number because it is at equal distance from previous prime (3165139937) and next prime (3165139961).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3165139949 - 2⁴ = 3165139933 is a prime.

It is a super-2 number, since 2×3165139949² = 20036221793511445202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3165139897 and 3165139906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3165139969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156284 + ... + 175370.

It is an arithmetic number, because the mean of its divisors is an integer number (398843760).

Almost surely, 2^3165139949 is an apocalyptic number.

It is an amenable number.

3165139949 is a deficient number, since it is larger than the sum of its proper divisors (25610131).

3165139949 is a wasteful number, since it uses less digits than its factorization.

3165139949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20419.

The product of its digits is 787320, while the sum is 50.

The square root of 3165139949 is about 56259.5765092486. The cubic root of 3165139949 is about 1468.2419863381.

The spelling of 3165139949 in words is "three billion, one hundred sixty-five million, one hundred thirty-nine thousand, nine hundred forty-nine".