1040210197 has 4 divisors (see below), whose sum is σ = 1120226380. Its totient is φ = 960194016.

The previous prime is 1040210191. The next prime is 1040210209. The reversal of 1040210197 is 7910120401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7910120401 = 97 ⋅81547633.

It can be written as a sum of positive squares in 2 ways, for example, as 254753521 + 785456676 = 15961^2 + 28026^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040210197 - 2²⁷ = 905992469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040210191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40008072 + ... + 40008097.

It is an arithmetic number, because the mean of its divisors is an integer number (280056595).

Almost surely, 2^1040210197 is an apocalyptic number.

It is an amenable number.

1040210197 is a deficient number, since it is larger than the sum of its proper divisors (80016183).

1040210197 is an equidigital number, since it uses as much as digits as its factorization.

1040210197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80016182.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1040210197 is about 32252.2897946797. The cubic root of 1040210197 is about 1013.2276566155.

Adding to 1040210197 its reverse (7910120401), we get a palindrome (8950330598).

The spelling of 1040210197 in words is "one billion, forty million, two hundred ten thousand, one hundred ninety-seven".