111420542 has 8 divisors (see below), whose sum is σ = 171647976. Its totient is φ = 54204552.

The previous prime is 111420527. The next prime is 111420553. The reversal of 111420542 is 245024111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752768 + ... + 752915.

It is an arithmetic number, because the mean of its divisors is an integer number (21455997).

Almost surely, 2^111420542 is an apocalyptic number.

111420542 is a deficient number, since it is larger than the sum of its proper divisors (60227434).

111420542 is a wasteful number, since it uses less digits than its factorization.

111420542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505722.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 111420542 is about 10555.5929250800. The cubic root of 111420542 is about 481.1957197002.

Adding to 111420542 its reverse (245024111), we get a palindrome (356444653).

The spelling of 111420542 in words is "one hundred eleven million, four hundred twenty thousand, five hundred forty-two".