1125624497 has 4 divisors (see below), whose sum is σ = 1136769396. Its totient is φ = 1114479600.

The previous prime is 1125624431. The next prime is 1125624509. The reversal of 1125624497 is 7944265211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7944265211 = 5923 ⋅1341257.

It can be written as a sum of positive squares in 2 ways, for example, as 1100182561 + 25441936 = 33169^2 + 5044^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125624497 - 2¹⁸ = 1125362353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125224497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5572298 + ... + 5572499.

It is an arithmetic number, because the mean of its divisors is an integer number (284192349).

Almost surely, 2^1125624497 is an apocalyptic number.

It is an amenable number.

1125624497 is a deficient number, since it is larger than the sum of its proper divisors (11144899).

1125624497 is a wasteful number, since it uses less digits than its factorization.

1125624497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11144898.

The product of its digits is 120960, while the sum is 41.

The square root of 1125624497 is about 33550.3278225415. The cubic root of 1125624497 is about 1040.2343212768.

It can be divided in two parts, 11256 and 24497, that added together give a palindrome (35753).

The spelling of 1125624497 in words is "one billion, one hundred twenty-five million, six hundred twenty-four thousand, four hundred ninety-seven".