1121858132 has 24 divisors (see below), whose sum is σ = 2073722112. Its totient is φ = 530208000.

The previous prime is 1121858131. The next prime is 1121858147. The reversal of 1121858132 is 2318581211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121858131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99869 + ... + 110532.

It is an arithmetic number, because the mean of its divisors is an integer number (86405088).

Almost surely, 2^1121858132 is an apocalyptic number.

It is an amenable number.

1121858132 is a deficient number, since it is larger than the sum of its proper divisors (951863980).

1121858132 is a wasteful number, since it uses less digits than its factorization.

1121858132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210479 (or 210477 counting only the distinct ones).

The product of its digits is 3840, while the sum is 32.

The square root of 1121858132 is about 33494.1507132216. The cubic root of 1121858132 is about 1039.0728089822.

The spelling of 1121858132 in words is "one billion, one hundred twenty-one million, eight hundred fifty-eight thousand, one hundred thirty-two".