194996493 has 12 divisors (see below), whose sum is σ = 291374460. Its totient is φ = 125514816.

The previous prime is 194996491. The next prime is 194996509. The reversal of 194996493 is 394699491.

194996493 is a `hidden beast` number, since 1 + 9 + 499 + 64 + 93 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 105637284 + 89359209 = 10278^2 + 9453^2 .

It is not a de Polignac number, because 194996493 - 2¹ = 194996491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194996491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373296 + ... + 373817.

It is an arithmetic number, because the mean of its divisors is an integer number (24281205).

Almost surely, 2^194996493 is an apocalyptic number.

It is an amenable number.

194996493 is a deficient number, since it is larger than the sum of its proper divisors (96377967).

194996493 is a wasteful number, since it uses less digits than its factorization.

194996493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747148 (or 747145 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 194996493 is about 13964.1144724612. The cubic root of 194996493 is about 579.8855233839.

The spelling of 194996493 in words is "one hundred ninety-four million, nine hundred ninety-six thousand, four hundred ninety-three".