11172057 has 16 divisors (see below), whose sum is σ = 16887360. Its totient is φ = 6512832.

The previous prime is 11172023. The next prime is 11172061. The reversal of 11172057 is 75027111.

It is a happy number.

It is not a de Polignac number, because 11172057 - 2⁷ = 11171929 is a prime.

It is a super-2 number, since 2×11172057² = 249629715222498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11172157) 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 15 ways as a sum of consecutive naturals, for example, 6798 + ... + 8279.

It is an arithmetic number, because the mean of its divisors is an integer number (1055460).

Almost surely, 2^11172057 is an apocalyptic number.

It is an amenable number.

11172057 is a deficient number, since it is larger than the sum of its proper divisors (5715303).

11172057 is a wasteful number, since it uses less digits than its factorization.

11172057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15112.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 11172057 is about 3342.4627148257. The cubic root of 11172057 is about 223.5515648581.

Adding to 11172057 its reverse (75027111), we get a palindrome (86199168).

The spelling of 11172057 in words is "eleven million, one hundred seventy-two thousand, fifty-seven".