1125321534 has 24 divisors (see below), whose sum is σ = 2478169512. Its totient is φ = 368957520.

The previous prime is 1125321479. The next prime is 1125321551. The reversal of 1125321534 is 4351235211.

1125321534 is a `hidden beast` number, since 1 + 125 + 3 + 2 + 1 + 534 = 666.

It is a super-2 number, since 2×1125321534² = 2532697109768226312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1125321498 and 1125321507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511344 + ... + 513539.

It is an arithmetic number, because the mean of its divisors is an integer number (103257063).

Almost surely, 2^1125321534 is an apocalyptic number.

1125321534 is an abundant number, since it is smaller than the sum of its proper divisors (1352847978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125321534 is a wasteful number, since it uses less digits than its factorization.

1125321534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024952 (or 1024949 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1125321534 is about 33545.8124659398. The cubic root of 1125321534 is about 1040.1409861873.

Adding to 1125321534 its reverse (4351235211), we get a palindrome (5476556745).

The spelling of 1125321534 in words is "one billion, one hundred twenty-five million, three hundred twenty-one thousand, five hundred thirty-four".