111346621 has 2 divisors, whose sum is σ = 111346622. Its totient is φ = 111346620.

The previous prime is 111346607. The next prime is 111346649. The reversal of 111346621 is 126643111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108056025 + 3290596 = 10395^2 + 1814^2 .

It is a cyclic number.

It is not a de Polignac number, because 111346621 - 2¹³ = 111338429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111346601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55673310 + 55673311.

It is an arithmetic number, because the mean of its divisors is an integer number (55673311).

Almost surely, 2^111346621 is an apocalyptic number.

It is an amenable number.

111346621 is a deficient number, since it is larger than the sum of its proper divisors (1).

111346621 is an equidigital number, since it uses as much as digits as its factorization.

111346621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 111346621 is about 10552.0908354695. The cubic root of 111346621 is about 481.0892811047.

Adding to 111346621 its reverse (126643111), we get a palindrome (237989732).

The spelling of 111346621 in words is "one hundred eleven million, three hundred forty-six thousand, six hundred twenty-one".