196498091 has 2 divisors, whose sum is σ = 196498092. Its totient is φ = 196498090.

The previous prime is 196498051. The next prime is 196498097. The reversal of 196498091 is 190894691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196498091 - 2¹⁴ = 196481707 is a prime.

It is a super-2 number, since 2×196498091² = 77222999533288562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (196498097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98249045 + 98249046.

It is an arithmetic number, because the mean of its divisors is an integer number (98249046).

Almost surely, 2^196498091 is an apocalyptic number.

196498091 is a deficient number, since it is larger than the sum of its proper divisors (1).

196498091 is an equidigital number, since it uses as much as digits as its factorization.

196498091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 196498091 is about 14017.7776769358. Note that the first 3 decimals coincide. The cubic root of 196498091 is about 581.3702156098.

The spelling of 196498091 in words is "one hundred ninety-six million, four hundred ninety-eight thousand, ninety-one".