1125241797 has 4 divisors (see below), whose sum is σ = 1500322400. Its totient is φ = 750161196.

The previous prime is 1125241787. The next prime is 1125241801. The reversal of 1125241797 is 7971425211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1125241797 - 2¹⁰ = 1125240773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125241787) 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, 187540297 + ... + 187540302.

It is an arithmetic number, because the mean of its divisors is an integer number (375080600).

Almost surely, 2^1125241797 is an apocalyptic number.

It is an amenable number.

1125241797 is a deficient number, since it is larger than the sum of its proper divisors (375080603).

1125241797 is an equidigital number, since it uses as much as digits as its factorization.

1125241797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375080602.

The product of its digits is 35280, while the sum is 39.

The square root of 1125241797 is about 33544.6239656968. The cubic root of 1125241797 is about 1040.1164184887.

The spelling of 1125241797 in words is "one billion, one hundred twenty-five million, two hundred forty-one thousand, seven hundred ninety-seven".