190043197 has 2 divisors, whose sum is σ = 190043198. Its totient is φ = 190043196.

The previous prime is 190043179. The next prime is 190043219. The reversal of 190043197 is 791340091.

Together with previous prime (190043179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181198521 + 8844676 = 13461^2 + 2974^2 .

It is a cyclic number.

It is not a de Polignac number, because 190043197 - 2¹⁹ = 189518909 is a prime.

It is a super-2 number, since 2×190043197² = 72232833451961618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190043597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95021598 + 95021599.

It is an arithmetic number, because the mean of its divisors is an integer number (95021599).

Almost surely, 2^190043197 is an apocalyptic number.

It is an amenable number.

190043197 is a deficient number, since it is larger than the sum of its proper divisors (1).

190043197 is an equidigital number, since it uses as much as digits as its factorization.

190043197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 190043197 is about 13785.6155829183. The cubic root of 190043197 is about 574.9332721558.

It can be divided in two parts, 19004 and 3197, that added together give a square (22201 = 149²).

The spelling of 190043197 in words is "one hundred ninety million, forty-three thousand, one hundred ninety-seven".