1922136854 has 8 divisors (see below), whose sum is σ = 3145314888. Its totient is φ = 873698560.

The previous prime is 1922136823. The next prime is 1922136857. The reversal of 1922136854 is 4586312291.

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

It is a super-2 number, since 2×1922136854² = 7389220171010034632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922136857) 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, 43684907 + ... + 43684950.

It is an arithmetic number, because the mean of its divisors is an integer number (393164361).

Almost surely, 2^1922136854 is an apocalyptic number.

1922136854 is a deficient number, since it is larger than the sum of its proper divisors (1223178034).

1922136854 is a wasteful number, since it uses less digits than its factorization.

1922136854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87369870.

The product of its digits is 103680, while the sum is 41.

The square root of 1922136854 is about 43842.1812185480. The cubic root of 1922136854 is about 1243.3539218624.

The spelling of 1922136854 in words is "one billion, nine hundred twenty-two million, one hundred thirty-six thousand, eight hundred fifty-four".