1154222356 has 12 divisors (see below), whose sum is σ = 2308444768. Its totient is φ = 494666712.

The previous prime is 1154222353. The next prime is 1154222357. The reversal of 1154222356 is 6532224511.

1154222356 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154222353) 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, 20611086 + ... + 20611141.

Almost surely, 2^1154222356 is an apocalyptic number.

It is an amenable number.

1154222356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1154222356 is a wasteful number, since it uses less digits than its factorization.

1154222356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41222238 (or 41222236 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 1154222356 is about 33973.8481188104. The cubic root of 1154222356 is about 1048.9702242516.

Adding to 1154222356 its reverse (6532224511), we get a palindrome (7686446867).

The spelling of 1154222356 in words is "one billion, one hundred fifty-four million, two hundred twenty-two thousand, three hundred fifty-six".