1842315197 has 8 divisors (see below), whose sum is σ = 1897684152. Its totient is φ = 1787443200.

The previous prime is 1842315191. The next prime is 1842315239. The reversal of 1842315197 is 7915132481.

It can be written as a sum of positive squares in 4 ways, for example, as 145781476 + 1696533721 = 12074^2 + 41189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1842315197 - 2⁶ = 1842315133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1842315191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116708 + ... + 131549.

It is an arithmetic number, because the mean of its divisors is an integer number (237210519).

Almost surely, 2^1842315197 is an apocalyptic number.

It is an amenable number.

1842315197 is a deficient number, since it is larger than the sum of its proper divisors (55368955).

1842315197 is a wasteful number, since it uses less digits than its factorization.

1842315197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248479.

The product of its digits is 60480, while the sum is 41.

The square root of 1842315197 is about 42922.1993495208. The cubic root of 1842315197 is about 1225.8988703577.

The spelling of 1842315197 in words is "one billion, eight hundred forty-two million, three hundred fifteen thousand, one hundred ninety-seven".