1213874590 has 8 divisors (see below), whose sum is σ = 2184974280. Its totient is φ = 485549832.

The previous prime is 1213874581. The next prime is 1213874591. The reversal of 1213874590 is 954783121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213874591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60693720 + ... + 60693739.

It is an arithmetic number, because the mean of its divisors is an integer number (273121785).

Almost surely, 2^1213874590 is an apocalyptic number.

1213874590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213874590 is a deficient number, since it is larger than the sum of its proper divisors (971099690).

1213874590 is a wasteful number, since it uses less digits than its factorization.

1213874590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121387466.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1213874590 is about 34840.7030640887. The cubic root of 1213874590 is about 1066.7384275723.

The spelling of 1213874590 in words is "one billion, two hundred thirteen million, eight hundred seventy-four thousand, five hundred ninety".