1838861125 has 16 divisors (see below), whose sum is σ = 2296172736. Its totient is φ = 1470272400.

The previous prime is 1838861119. The next prime is 1838861147. The reversal of 1838861125 is 5211688381.

It is not a de Polignac number, because 1838861125 - 2²³ = 1830472517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332634 + ... + 338116.

It is an arithmetic number, because the mean of its divisors is an integer number (143510796).

Almost surely, 2^1838861125 is an apocalyptic number.

It is an amenable number.

1838861125 is a deficient number, since it is larger than the sum of its proper divisors (457311611).

1838861125 is an equidigital number, since it uses as much as digits as its factorization.

1838861125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8181 (or 8171 counting only the distinct ones).

The product of its digits is 92160, while the sum is 43.

The square root of 1838861125 is about 42881.9440440846. The cubic root of 1838861125 is about 1225.1322639363.

The spelling of 1838861125 in words is "one billion, eight hundred thirty-eight million, eight hundred sixty-one thousand, one hundred twenty-five".