2219307157 has 4 divisors (see below), whose sum is σ = 2295835020. Its totient is φ = 2142779296.

The previous prime is 2219307151. The next prime is 2219307161. The reversal of 2219307157 is 7517039122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1459698436 + 759608721 = 38206^2 + 27561^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219307157 - 2³ = 2219307149 is a prime.

It is a super-2 number, since 2×2219307157² = 9850648514222845298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219307151) 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, 38263888 + ... + 38263945.

It is an arithmetic number, because the mean of its divisors is an integer number (573958755).

Almost surely, 2^2219307157 is an apocalyptic number.

It is an amenable number.

2219307157 is a deficient number, since it is larger than the sum of its proper divisors (76527863).

2219307157 is an equidigital number, since it uses as much as digits as its factorization.

2219307157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76527862.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 2219307157 is about 47109.5229969483. The cubic root of 2219307157 is about 1304.3850259796.

The spelling of 2219307157 in words is "two billion, two hundred nineteen million, three hundred seven thousand, one hundred fifty-seven".