196264381 has 2 divisors, whose sum is σ = 196264382. Its totient is φ = 196264380.

The previous prime is 196264351. The next prime is 196264399. The reversal of 196264381 is 183462691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187443481 + 8820900 = 13691^2 + 2970^2 .

It is a cyclic number.

It is not a de Polignac number, because 196264381 - 2¹⁵ = 196231613 is a prime.

It is a super-2 number, since 2×196264381² = 77039414498626322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196264301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98132190 + 98132191.

It is an arithmetic number, because the mean of its divisors is an integer number (98132191).

Almost surely, 2^196264381 is an apocalyptic number.

It is an amenable number.

196264381 is a deficient number, since it is larger than the sum of its proper divisors (1).

196264381 is an equidigital number, since it uses as much as digits as its factorization.

196264381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 196264381 is about 14009.4389966194. The cubic root of 196264381 is about 581.1396350214.

The spelling of 196264381 in words is "one hundred ninety-six million, two hundred sixty-four thousand, three hundred eighty-one".