1885097138 has 8 divisors (see below), whose sum is σ = 2838080640. Its totient is φ = 939070260.

The previous prime is 1885097129. The next prime is 1885097143. The reversal of 1885097138 is 8317905881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1738478 + ... + 1739561.

It is an arithmetic number, because the mean of its divisors is an integer number (354760080).

Almost surely, 2^1885097138 is an apocalyptic number.

1885097138 is a deficient number, since it is larger than the sum of its proper divisors (952983502).

1885097138 is a wasteful number, since it uses less digits than its factorization.

1885097138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478312.

The product of its (nonzero) digits is 483840, while the sum is 50.

The square root of 1885097138 is about 43417.7053516189. The cubic root of 1885097138 is about 1235.3155586956.

The spelling of 1885097138 in words is "one billion, eight hundred eighty-five million, ninety-seven thousand, one hundred thirty-eight".