2219589157 has 4 divisors (see below), whose sum is σ = 2221367500. Its totient is φ = 2217810816.

The previous prime is 2219589137. The next prime is 2219589167. The reversal of 2219589157 is 7519859122.

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 280596001 + 1938993156 = 16751^2 + 44034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2219589157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2219589157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219589137) 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, 887298 + ... + 889795.

It is an arithmetic number, because the mean of its divisors is an integer number (555341875).

Almost surely, 2^2219589157 is an apocalyptic number.

It is an amenable number.

2219589157 is a deficient number, since it is larger than the sum of its proper divisors (1778343).

2219589157 is a wasteful number, since it uses less digits than its factorization.

2219589157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778342.

The product of its digits is 453600, while the sum is 49.

The square root of 2219589157 is about 47112.5159272990. The cubic root of 2219589157 is about 1304.4402715995.

The spelling of 2219589157 in words is "two billion, two hundred nineteen million, five hundred eighty-nine thousand, one hundred fifty-seven".