111970 has 8 divisors (see below), whose sum is σ = 201564. Its totient is φ = 44784.

The previous prime is 111959. The next prime is 111973. The reversal of 111970 is 79111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 106929 + 5041 = 327^2 + 71^2 .

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 (111973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5589 + ... + 5608.

2¹¹¹⁹⁷⁰ is an apocalyptic number.

111970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111970 is a deficient number, since it is larger than the sum of its proper divisors (89594).

111970 is a wasteful number, since it uses less digits than its factorization.

111970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11204.

The product of its (nonzero) digits is 63, while the sum is 19.

The square root of 111970 is about 334.6191865390. The cubic root of 111970 is about 48.1985410737.

It can be divided in two parts, 111 and 970, that added together give a triangular number (1081 = T₄₆).

The spelling of 111970 in words is "one hundred eleven thousand, nine hundred seventy".