1125211147 has 8 divisors (see below), whose sum is σ = 1213880256. Its totient is φ = 1039039872.

The previous prime is 1125211133. The next prime is 1125211159. The reversal of 1125211147 is 7411125211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1125211147 - 2⁷ = 1125211019 is a prime.

It is a super-2 number, since 2×1125211147² = 2532200250666111218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125211127) 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, 623523 + ... + 625324.

It is an arithmetic number, because the mean of its divisors is an integer number (151735032).

Almost surely, 2^1125211147 is an apocalyptic number.

1125211147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1125211147 is a deficient number, since it is larger than the sum of its proper divisors (88669109).

1125211147 is a wasteful number, since it uses less digits than its factorization.

1125211147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248917.

The product of its digits is 560, while the sum is 25.

The square root of 1125211147 is about 33544.1671084557. The cubic root of 1125211147 is about 1040.1069746347.

Adding to 1125211147 its reverse (7411125211), we get a palindrome (8536336358).

The spelling of 1125211147 in words is "one billion, one hundred twenty-five million, two hundred eleven thousand, one hundred forty-seven".