2219154953 has 4 divisors (see below), whose sum is σ = 2219286420. Its totient is φ = 2219023488.

The previous prime is 2219154941. The next prime is 2219154979. The reversal of 2219154953 is 3594519122.

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 1440354304 + 778800649 = 37952^2 + 27907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219154953 - 2⁸ = 2219154697 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 2219154953.

It is not an unprimeable number, because it can be changed into a prime (2219154053) 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, 35900 + ... + 75677.

It is an arithmetic number, because the mean of its divisors is an integer number (554821605).

Almost surely, 2^2219154953 is an apocalyptic number.

It is an amenable number.

2219154953 is a deficient number, since it is larger than the sum of its proper divisors (131467).

2219154953 is a wasteful number, since it uses less digits than its factorization.

2219154953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131466.

The product of its digits is 97200, while the sum is 41.

The square root of 2219154953 is about 47107.9075421526. The cubic root of 2219154953 is about 1304.3552062892.

The spelling of 2219154953 in words is "two billion, two hundred nineteen million, one hundred fifty-four thousand, nine hundred fifty-three".