11457147 has 8 divisors (see below), whose sum is σ = 16451344. Its totient is φ = 7050528.

The previous prime is 11457109. The next prime is 11457157. The reversal of 11457147 is 74175411.

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

It is not a de Polignac number, because 11457147 - 2²⁰ = 10408571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11457157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146848 + ... + 146925.

It is an arithmetic number, because the mean of its divisors is an integer number (2056418).

Almost surely, 2^11457147 is an apocalyptic number.

11457147 is a deficient number, since it is larger than the sum of its proper divisors (4994197).

11457147 is a wasteful number, since it uses less digits than its factorization.

11457147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293789.

The product of its digits is 3920, while the sum is 30.

The square root of 11457147 is about 3384.8407643492. The cubic root of 11457147 is about 225.4371550348.

The spelling of 11457147 in words is "eleven million, four hundred fifty-seven thousand, one hundred forty-seven".