111420297 has 6 divisors (see below), whose sum is σ = 160940442. Its totient is φ = 74280192.

The previous prime is 111420223. The next prime is 111420307. The reversal of 111420297 is 792024111.

It can be written as a sum of positive squares in only one way, i.e., 105760656 + 5659641 = 10284^2 + 2379^2 .

It is a de Polignac number, because none of the positive numbers 2^k-111420297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111420297.

It is not an unprimeable number, because it can be changed into a prime (111420097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6190008 + ... + 6190025.

It is an arithmetic number, because the mean of its divisors is an integer number (26823407).

Almost surely, 2^111420297 is an apocalyptic number.

It is an amenable number.

111420297 is a deficient number, since it is larger than the sum of its proper divisors (49520145).

111420297 is a wasteful number, since it uses less digits than its factorization.

111420297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380039 (or 12380036 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 111420297 is about 10555.5813198516. The cubic root of 111420297 is about 481.1953670033.

The spelling of 111420297 in words is "one hundred eleven million, four hundred twenty thousand, two hundred ninety-seven".