3925187149 has 8 divisors (see below), whose sum is σ = 4372887960. Its totient is φ = 3498309696.

The previous prime is 3925187129. The next prime is 3925187173. The reversal of 3925187149 is 9417815293.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20187049 + 3905000100 = 4493^2 + 62490^2 .

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 3925187149 - 2⁵ = 3925187117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3925187129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5205442 + ... + 5206195.

It is an arithmetic number, because the mean of its divisors is an integer number (546610995).

Almost surely, 2^3925187149 is an apocalyptic number.

It is an amenable number.

3925187149 is a deficient number, since it is larger than the sum of its proper divisors (447700811).

3925187149 is a wasteful number, since it uses less digits than its factorization.

3925187149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10411679.

The product of its digits is 544320, while the sum is 49.

The square root of 3925187149 is about 62651.3140245278. The cubic root of 3925187149 is about 1577.4422041257.

The spelling of 3925187149 in words is "three billion, nine hundred twenty-five million, one hundred eighty-seven thousand, one hundred forty-nine".