194552140 has 24 divisors (see below), whose sum is σ = 408853872. Its totient is φ = 77764800.

The previous prime is 194552123. The next prime is 194552173. The reversal of 194552140 is 41255491.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35590 + ... + 40690.

It is an arithmetic number, because the mean of its divisors is an integer number (17035578).

Almost surely, 2^194552140 is an apocalyptic number.

194552140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194552140 is an abundant number, since it is smaller than the sum of its proper divisors (214301732).

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

194552140 is a wasteful number, since it uses less digits than its factorization.

194552140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7017 (or 7015 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 194552140 is about 13948.1948652863. The cubic root of 194552140 is about 579.4447122988. Note that the first 3 decimals are identical.

The spelling of 194552140 in words is "one hundred ninety-four million, five hundred fifty-two thousand, one hundred forty".