194949 has 6 divisors (see below), whose sum is σ = 281606. Its totient is φ = 129960.

The previous prime is 194933. The next prime is 194963. The reversal of 194949 is 949491.

It can be written as a sum of positive squares in only one way, i.e., 152100 + 42849 = 390^2 + 207^2 .

It is not a de Polignac number, because 194949 - 2⁴ = 194933 is a prime.

It is a super-2 number, since 2×194949² = 76010225202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10822 + ... + 10839.

2¹⁹⁴⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

194949 is a deficient number, since it is larger than the sum of its proper divisors (86657).

194949 is a wasteful number, since it uses less digits than its factorization.

194949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21667 (or 21664 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 194949 is about 441.5302934114. The cubic root of 194949 is about 57.9838440931.

It can be divided in two parts, 19494 and 9, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 194949 in words is "one hundred ninety-four thousand, nine hundred forty-nine".