3935137189 has 4 divisors (see below), whose sum is σ = 3936350880. Its totient is φ = 3933923500.

The previous prime is 3935137147. The next prime is 3935137211. The reversal of 3935137189 is 9817315393.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3935137189 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 (3935137889) 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, 601969 + ... + 608470.

It is an arithmetic number, because the mean of its divisors is an integer number (984087720).

Almost surely, 2^3935137189 is an apocalyptic number.

It is an amenable number.

3935137189 is a deficient number, since it is larger than the sum of its proper divisors (1213691).

3935137189 is a wasteful number, since it uses less digits than its factorization.

3935137189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213690.

The product of its digits is 612360, while the sum is 49.

The square root of 3935137189 is about 62730.6718360325. The cubic root of 3935137189 is about 1578.7739766586.

The spelling of 3935137189 in words is "three billion, nine hundred thirty-five million, one hundred thirty-seven thousand, one hundred eighty-nine".