1919133241 has 2 divisors, whose sum is σ = 1919133242. Its totient is φ = 1919133240.

The previous prime is 1919133191. The next prime is 1919133259. The reversal of 1919133241 is 1423319191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1254576400 + 664556841 = 35420^2 + 25779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1919133241 - 2¹³ = 1919125049 is a prime.

It is a super-2 number, since 2×1919133241² = 7366144793422328162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1919133197 and 1919133206.

It is not a weakly prime, because it can be changed into another prime (1919133641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959566620 + 959566621.

It is an arithmetic number, because the mean of its divisors is an integer number (959566621).

Almost surely, 2^1919133241 is an apocalyptic number.

It is an amenable number.

1919133241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1919133241 is an equidigital number, since it uses as much as digits as its factorization.

1919133241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 34.

The square root of 1919133241 is about 43807.9129952569. The cubic root of 1919133241 is about 1242.7059449430.

The spelling of 1919133241 in words is "one billion, nine hundred nineteen million, one hundred thirty-three thousand, two hundred forty-one".