3201129989 has 4 divisors (see below), whose sum is σ = 3215485056. Its totient is φ = 3186774924.

The previous prime is 3201129979. The next prime is 3201130033. The reversal of 3201129989 is 9899211023.

It is a happy number.

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: 9899211023 = 13 ⋅761477771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3201129989 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 (3201129959) 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, 7177199 + ... + 7177644.

It is an arithmetic number, because the mean of its divisors is an integer number (803871264).

Almost surely, 2^3201129989 is an apocalyptic number.

It is an amenable number.

3201129989 is a deficient number, since it is larger than the sum of its proper divisors (14355067).

3201129989 is a wasteful number, since it uses less digits than its factorization.

3201129989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14355066.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 3201129989 is about 56578.5293994109. The cubic root of 3201129989 is about 1473.7860338378.

The spelling of 3201129989 in words is "three billion, two hundred one million, one hundred twenty-nine thousand, nine hundred eighty-nine".