1854157086 has 48 divisors (see below), whose sum is σ = 4093165440. Its totient is φ = 606488400.

The previous prime is 1854157057. The next prime is 1854157087. The reversal of 1854157086 is 6807514581.

It is a super-2 number, since 2×1854157086² = 6875796999128022792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1854157087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221485 + ... + 229703.

It is an arithmetic number, because the mean of its divisors is an integer number (85274280).

Almost surely, 2^1854157086 is an apocalyptic number.

1854157086 is an abundant number, since it is smaller than the sum of its proper divisors (2239008354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1854157086 is a wasteful number, since it uses less digits than its factorization.

1854157086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461 (or 8458 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The square root of 1854157086 is about 43059.9243612898. The cubic root of 1854157086 is about 1228.5198415706.

The spelling of 1854157086 in words is "one billion, eight hundred fifty-four million, one hundred fifty-seven thousand, eighty-six".