3125403819 has 16 divisors (see below), whose sum is σ = 4633005600. Its totient is φ = 2082352608.

The previous prime is 3125403817. The next prime is 3125403821. The reversal of 3125403819 is 9183045213.

3125403819 is a `hidden beast` number, since 31 + 2 + 540 + 3 + 81 + 9 = 666.

3125403819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3125403817) and next prime (3125403821).

It is not a de Polignac number, because 3125403819 - 2¹ = 3125403817 is a prime.

It is a super-2 number, since 2×3125403819² = 19536298063639569522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3125403817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12277 + ... + 80009.

It is an arithmetic number, because the mean of its divisors is an integer number (289562850).

Almost surely, 2^3125403819 is an apocalyptic number.

3125403819 is a deficient number, since it is larger than the sum of its proper divisors (1507601781).

3125403819 is a wasteful number, since it uses less digits than its factorization.

3125403819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69451 (or 69445 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 3125403819 is about 55905.3111877575. The cubic root of 3125403819 is about 1462.0718410031.

The spelling of 3125403819 in words is "three billion, one hundred twenty-five million, four hundred three thousand, eight hundred nineteen".