1121256604 has 24 divisors (see below), whose sum is σ = 2117244528. Its totient is φ = 516497280.

The previous prime is 1121256571. The next prime is 1121256611. The reversal of 1121256604 is 4066521211.

It is a super-2 number, since 2×1121256604² = 2514432744027225632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6399 + ... + 47785.

It is an arithmetic number, because the mean of its divisors is an integer number (88218522).

Almost surely, 2^1121256604 is an apocalyptic number.

It is an amenable number.

1121256604 is a deficient number, since it is larger than the sum of its proper divisors (995987924).

1121256604 is a wasteful number, since it uses less digits than its factorization.

1121256604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41925 (or 41923 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1121256604 is about 33485.1699114698. The cubic root of 1121256604 is about 1038.8870626400.

Adding to 1121256604 its reverse (4066521211), we get a palindrome (5187777815).

The spelling of 1121256604 in words is "one billion, one hundred twenty-one million, two hundred fifty-six thousand, six hundred four".