3129950 has 24 divisors (see below), whose sum is σ = 5925960. Its totient is φ = 1229600.

The previous prime is 3129947. The next prime is 3129953. The reversal of 3129950 is 599213.

It is an interprime number because it is at equal distance from previous prime (3129947) and next prime (3129953).

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2420 + ... + 3480.

It is an arithmetic number, because the mean of its divisors is an integer number (246915).

Almost surely, 2^3129950 is an apocalyptic number.

3129950 is a deficient number, since it is larger than the sum of its proper divisors (2796010).

3129950 is a wasteful number, since it uses less digits than its factorization.

3129950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 3129950 is about 1769.1664704035. The cubic root of 3129950 is about 146.2780402563.

The spelling of 3129950 in words is "three million, one hundred twenty-nine thousand, nine hundred fifty".