1154222052 has 24 divisors (see below), whose sum is σ = 2750487936. Its totient is φ = 376554528.

The previous prime is 1154222029. The next prime is 1154222057. The reversal of 1154222052 is 2502224511.

It is not an unprimeable number, because it can be changed into a prime (1154222057) 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 7 ways as a sum of consecutive naturals, for example, 1022683 + ... + 1023810.

It is an arithmetic number, because the mean of its divisors is an integer number (114603664).

Almost surely, 2^1154222052 is an apocalyptic number.

1154222052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1154222052 is an abundant number, since it is smaller than the sum of its proper divisors (1596265884).

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

1154222052 is a wasteful number, since it uses less digits than its factorization.

1154222052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046547 (or 2046545 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1154222052 is about 33973.8436447806. The cubic root of 1154222052 is about 1048.9701321587.

Adding to 1154222052 its reverse (2502224511), we get a palindrome (3656446563).

The spelling of 1154222052 in words is "one billion, one hundred fifty-four million, two hundred twenty-two thousand, fifty-two".