11272151 has 8 divisors (see below), whose sum is σ = 12559104. Its totient is φ = 10028920.

The previous prime is 11272123. The next prime is 11272169. The reversal of 11272151 is 15127211.

It is a happy number.

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

It is not a de Polignac number, because 11272151 - 2¹⁸ = 11010007 is a prime.

It is a super-2 number, since 2×11272151² = 254122776333602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272181) 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 7 ways as a sum of consecutive naturals, for example, 10385 + ... + 11418.

It is an arithmetic number, because the mean of its divisors is an integer number (1569888).

Almost surely, 2^11272151 is an apocalyptic number.

11272151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11272151 is a deficient number, since it is larger than the sum of its proper divisors (1286953).

11272151 is a wasteful number, since it uses less digits than its factorization.

11272151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21861.

The product of its digits is 140, while the sum is 20.

The square root of 11272151 is about 3357.4024185373. The cubic root of 11272151 is about 224.2172040180.

Adding to 11272151 its reverse (15127211), we get a palindrome (26399362).

The spelling of 11272151 in words is "eleven million, two hundred seventy-two thousand, one hundred fifty-one".