1125523151 has 8 divisors (see below), whose sum is σ = 1168890624. Its totient is φ = 1082937240.

The previous prime is 1125523099. The next prime is 1125523153. The reversal of 1125523151 is 1513255211.

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 1125523151 - 2¹⁰ = 1125522127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125523151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125523153) 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, 192455 + ... + 198216.

It is an arithmetic number, because the mean of its divisors is an integer number (146111328).

Almost surely, 2^1125523151 is an apocalyptic number.

1125523151 is a deficient number, since it is larger than the sum of its proper divisors (43367473).

1125523151 is an equidigital number, since it uses as much as digits as its factorization.

1125523151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390781.

The product of its digits is 1500, while the sum is 26.

The square root of 1125523151 is about 33548.8174307232. The cubic root of 1125523151 is about 1040.2031010514.

Adding to 1125523151 its reverse (1513255211), we get a palindrome (2638778362).

The spelling of 1125523151 in words is "one billion, one hundred twenty-five million, five hundred twenty-three thousand, one hundred fifty-one".