3129700075 has 12 divisors (see below), whose sum is σ = 3897931320. Its totient is φ = 2492725760.

The previous prime is 3129700069. The next prime is 3129700117. The reversal of 3129700075 is 5700079213.

It is not a de Polignac number, because 3129700075 - 2⁹ = 3129699563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3129700075.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270070 + ... + 281419.

It is an arithmetic number, because the mean of its divisors is an integer number (324827610).

Almost surely, 2^3129700075 is an apocalyptic number.

3129700075 is a deficient number, since it is larger than the sum of its proper divisors (768231245).

3129700075 is a wasteful number, since it uses less digits than its factorization.

3129700075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551726 (or 551721 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 3129700075 is about 55943.7223913461. The cubic root of 3129700075 is about 1462.7414674231.

Adding to 3129700075 its reverse (5700079213), we get a palindrome (8829779288).

The spelling of 3129700075 in words is "three billion, one hundred twenty-nine million, seven hundred thousand, seventy-five".