111961476 has 72 divisors (see below), whose sum is σ = 310774464. Its totient is φ = 33704640.

The previous prime is 111961463. The next prime is 111961477. The reversal of 111961476 is 674169111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 111961476.

It is not an unprimeable number, because it can be changed into a prime (111961477) 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, 65286 + ... + 66978.

It is an arithmetic number, because the mean of its divisors is an integer number (4316312).

Almost surely, 2^111961476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111961476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155387232).

111961476 is an abundant number, since it is smaller than the sum of its proper divisors (198812988).

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

111961476 is a wasteful number, since it uses less digits than its factorization.

111961476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1876 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 111961476 is about 10581.1849998004. The cubic root of 111961476 is about 481.9731796397.

The spelling of 111961476 in words is "one hundred eleven million, nine hundred sixty-one thousand, four hundred seventy-six".