1125431402 has 8 divisors (see below), whose sum is σ = 1695211200. Its totient is φ = 560361004.

The previous prime is 1125431369. The next prime is 1125431407. The reversal of 1125431402 is 2041345211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1125431407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176752 + ... + 1177707.

It is an arithmetic number, because the mean of its divisors is an integer number (211901400).

Almost surely, 2^1125431402 is an apocalyptic number.

1125431402 is a deficient number, since it is larger than the sum of its proper divisors (569779798).

1125431402 is a wasteful number, since it uses less digits than its factorization.

1125431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354700.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1125431402 is about 33547.4500074149. The cubic root of 1125431402 is about 1040.1748356213.

Adding to 1125431402 its reverse (2041345211), we get a palindrome (3166776613).

The spelling of 1125431402 in words is "one billion, one hundred twenty-five million, four hundred thirty-one thousand, four hundred two".