1156272122 has 8 divisors (see below), whose sum is σ = 1745049216. Its totient is φ = 574589052.

The previous prime is 1156272059. The next prime is 1156272127. The reversal of 1156272122 is 2212726511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1156272122² = 2673930440228765768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1156272127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773098 + ... + 1773749.

It is an arithmetic number, because the mean of its divisors is an integer number (218131152).

Almost surely, 2^1156272122 is an apocalyptic number.

1156272122 is a deficient number, since it is larger than the sum of its proper divisors (588777094).

1156272122 is a wasteful number, since it uses less digits than its factorization.

1156272122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547012.

The product of its digits is 3360, while the sum is 29.

The square root of 1156272122 is about 34004.0015586401. The cubic root of 1156272122 is about 1049.5908071463.

Adding to 1156272122 its reverse (2212726511), we get a palindrome (3368998633).

The spelling of 1156272122 in words is "one billion, one hundred fifty-six million, two hundred seventy-two thousand, one hundred twenty-two".