3872145149 has 4 divisors (see below), whose sum is σ = 3954531264. Its totient is φ = 3789759036.

The previous prime is 3872145143. The next prime is 3872145157. The reversal of 3872145149 is 9415412783.

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 not a de Polignac number, because 3872145149 - 2²⁸ = 3603709693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872145143) 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, 41192987 + ... + 41193080.

It is an arithmetic number, because the mean of its divisors is an integer number (988632816).

Almost surely, 2^3872145149 is an apocalyptic number.

It is an amenable number.

3872145149 is a deficient number, since it is larger than the sum of its proper divisors (82386115).

3872145149 is an equidigital number, since it uses as much as digits as its factorization.

3872145149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82386114.

The product of its digits is 241920, while the sum is 44.

The square root of 3872145149 is about 62226.5630498744. The cubic root of 3872145149 is about 1570.3045035295.

The spelling of 3872145149 in words is "three billion, eight hundred seventy-two million, one hundred forty-five thousand, one hundred forty-nine".