1913224133 has 8 divisors (see below), whose sum is σ = 2039414400. Its totient is φ = 1789583328.

The previous prime is 1913224121. The next prime is 1913224141. The reversal of 1913224133 is 3314223191.

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 1913224133 - 2¹² = 1913220037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1913224096 and 1913224105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913224153) 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, 635816 + ... + 638817.

It is an arithmetic number, because the mean of its divisors is an integer number (254926800).

Almost surely, 2^1913224133 is an apocalyptic number.

It is an amenable number.

1913224133 is a deficient number, since it is larger than the sum of its proper divisors (126190267).

1913224133 is a wasteful number, since it uses less digits than its factorization.

1913224133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274731.

The product of its digits is 3888, while the sum is 29.

The square root of 1913224133 is about 43740.4176134614. The cubic root of 1913224133 is about 1241.4291822214.

The spelling of 1913224133 in words is "one billion, nine hundred thirteen million, two hundred twenty-four thousand, one hundred thirty-three".