194247963 has 120 divisors (see below), whose sum is σ = 382085088. Its totient is φ = 95738112.

The previous prime is 194247961. The next prime is 194247997. The reversal of 194247963 is 369742491.

It is a happy number.

It is not a de Polignac number, because 194247963 - 2¹ = 194247961 is a prime.

It is a super-2 number, since 2×194247963² = 75464542259298738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194247961) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2660895 + ... + 2660967.

Almost surely, 2^194247963 is an apocalyptic number.

194247963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

194247963 is a deficient number, since it is larger than the sum of its proper divisors (187837125).

194247963 is a wasteful number, since it uses less digits than its factorization.

194247963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 115 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 194247963 is about 13937.2867876068. The cubic root of 194247963 is about 579.1425727453.

The spelling of 194247963 in words is "one hundred ninety-four million, two hundred forty-seven thousand, nine hundred sixty-three".