111454213 has 4 divisors (see below), whose sum is σ = 120027628. Its totient is φ = 102880800.

The previous prime is 111454183. The next prime is 111454223. The reversal of 111454213 is 312454111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312454111 = 1523 ⋅205157.

It can be written as a sum of positive squares in 2 ways, for example, as 67125249 + 44328964 = 8193^2 + 6658^2 .

It is a cyclic number.

It is not a de Polignac number, because 111454213 - 2¹³ = 111446021 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 (111454223) 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, 4286688 + ... + 4286713.

It is an arithmetic number, because the mean of its divisors is an integer number (30006907).

Almost surely, 2^111454213 is an apocalyptic number.

111454213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111454213 is a deficient number, since it is larger than the sum of its proper divisors (8573415).

111454213 is an equidigital number, since it uses as much as digits as its factorization.

111454213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8573414.

The product of its digits is 480, while the sum is 22.

The square root of 111454213 is about 10557.1877410606. The cubic root of 111454213 is about 481.2441868528.

The spelling of 111454213 in words is "one hundred eleven million, four hundred fifty-four thousand, two hundred thirteen".