1125402450 has 48 divisors (see below), whose sum is σ = 2855921376. Its totient is φ = 293126400.

The previous prime is 1125402413. The next prime is 1125402457. The reversal of 1125402450 is 542045211.

It is a self number, because there is not a number n which added to its sum of digits gives 1125402450.

It is not an unprimeable number, because it can be changed into a prime (1125402457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80791 + ... + 93690.

It is an arithmetic number, because the mean of its divisors is an integer number (59498362).

Almost surely, 2^1125402450 is an apocalyptic number.

1125402450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125402450 is an abundant number, since it is smaller than the sum of its proper divisors (1730518926).

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

1125402450 is a wasteful number, since it uses less digits than its factorization.

1125402450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174539 (or 174534 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1125402450 is about 33547.0184964327. The cubic root of 1125402450 is about 1040.1659159602.

Adding to 1125402450 its reverse (542045211), we get a palindrome (1667447661).

The spelling of 1125402450 in words is "one billion, one hundred twenty-five million, four hundred two thousand, four hundred fifty".