111620477 has 4 divisors (see below), whose sum is σ = 112149696. Its totient is φ = 111091260.

The previous prime is 111620473. The next prime is 111620489. The reversal of 111620477 is 774026111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111620477 - 2² = 111620473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111620471) 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, 264293 + ... + 264714.

It is an arithmetic number, because the mean of its divisors is an integer number (28037424).

Almost surely, 2^111620477 is an apocalyptic number.

It is an amenable number.

111620477 is a deficient number, since it is larger than the sum of its proper divisors (529219).

111620477 is an equidigital number, since it uses as much as digits as its factorization.

111620477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529218.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 111620477 is about 10565.0592520818. The cubic root of 111620477 is about 481.4833697633.

Adding to 111620477 its reverse (774026111), we get a palindrome (885646588).

The spelling of 111620477 in words is "one hundred eleven million, six hundred twenty thousand, four hundred seventy-seven".