1161343425 has 48 divisors (see below), whose sum is σ = 2166914880. Its totient is φ = 543648000.

The previous prime is 1161343411. The next prime is 1161343453. The reversal of 1161343425 is 5243431611.

It is not a de Polignac number, because 1161343425 - 2¹⁰ = 1161342401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161343392 and 1161343401.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 346 + ... + 48195.

It is an arithmetic number, because the mean of its divisors is an integer number (45144060).

Almost surely, 2^1161343425 is an apocalyptic number.

1161343425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1161343425 is a deficient number, since it is larger than the sum of its proper divisors (1005571455).

1161343425 is a wasteful number, since it uses less digits than its factorization.

1161343425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48594 (or 48589 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 1161343425 is about 34078.4891830609. The cubic root of 1161343425 is about 1051.1230387764.

The spelling of 1161343425 in words is "one billion, one hundred sixty-one million, three hundred forty-three thousand, four hundred twenty-five".