1154445222 has 16 divisors (see below), whose sum is σ = 2638732032. Its totient is φ = 329841480.

The previous prime is 1154445221. The next prime is 1154445223. The reversal of 1154445222 is 2225444511.

It is an interprime number because it is at equal distance from previous prime (1154445221) and next prime (1154445223).

It is a self number, because there is not a number n which added to its sum of digits gives 1154445222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154445221) 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, 13743354 + ... + 13743437.

It is an arithmetic number, because the mean of its divisors is an integer number (164920752).

Almost surely, 2^1154445222 is an apocalyptic number.

1154445222 is an abundant number, since it is smaller than the sum of its proper divisors (1484286810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1154445222 is a wasteful number, since it uses less digits than its factorization.

1154445222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27486803.

The product of its digits is 12800, while the sum is 30.

The square root of 1154445222 is about 33977.1279245318. The cubic root of 1154445222 is about 1049.0377342802.

Adding to 1154445222 its reverse (2225444511), we get a palindrome (3379889733).

The spelling of 1154445222 in words is "one billion, one hundred fifty-four million, four hundred forty-five thousand, two hundred twenty-two".