1852138519 has 32 divisors (see below), whose sum is σ = 2339495424. Its totient is φ = 1424407680.

The previous prime is 1852138513. The next prime is 1852138523. The reversal of 1852138519 is 9158312581.

It is a cyclic number.

It is not a de Polignac number, because 1852138519 - 2¹⁹ = 1851614231 is a prime.

It is a super-2 number, since 2×1852138519² = 6860834187127026722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1852138513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2170897 + ... + 2171749.

It is an arithmetic number, because the mean of its divisors is an integer number (73109232).

Almost surely, 2^1852138519 is an apocalyptic number.

1852138519 is a deficient number, since it is larger than the sum of its proper divisors (487356905).

1852138519 is a wasteful number, since it uses less digits than its factorization.

1852138519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207.

The product of its digits is 86400, while the sum is 43.

The square root of 1852138519 is about 43036.4789335745. The cubic root of 1852138519 is about 1228.0738617256.

The spelling of 1852138519 in words is "one billion, eight hundred fifty-two million, one hundred thirty-eight thousand, five hundred nineteen".