1125245031 has 16 divisors (see below), whose sum is σ = 1569335040. Its totient is φ = 715816640.

The previous prime is 1125245003. The next prime is 1125245047. The reversal of 1125245031 is 1305425211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1125245031 - 2¹³ = 1125236839 is a prime.

It is a super-2 number, since 2×1125245031² = 2532352759580381922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1125244992 and 1125245010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125245071) 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, 9451 + ... + 48371.

It is an arithmetic number, because the mean of its divisors is an integer number (98083440).

Almost surely, 2^1125245031 is an apocalyptic number.

1125245031 is a deficient number, since it is larger than the sum of its proper divisors (444090009).

1125245031 is a wasteful number, since it uses less digits than its factorization.

1125245031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39366.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1125245031 is about 33544.6721701077. The cubic root of 1125245031 is about 1040.1174149363.

The spelling of 1125245031 in words is "one billion, one hundred twenty-five million, two hundred forty-five thousand, thirty-one".