105400253 has 8 divisors (see below), whose sum is σ = 122432640. Its totient is φ = 88861680.

The previous prime is 105400249. The next prime is 105400261. The reversal of 105400253 is 352004501.

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

It is a cyclic number.

It is not a de Polignac number, because 105400253 - 2² = 105400249 is a prime.

It is a super-2 number, since 2×105400253² = 22218426664928018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105403253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122993 + ... + 123846.

It is an arithmetic number, because the mean of its divisors is an integer number (15304080).

Almost surely, 2^105400253 is an apocalyptic number.

It is an amenable number.

105400253 is a deficient number, since it is larger than the sum of its proper divisors (17032387).

105400253 is an equidigital number, since it uses as much as digits as its factorization.

105400253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246907.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 105400253 is about 10266.4625358494. The cubic root of 105400253 is about 472.3680891160.

Adding to 105400253 its reverse (352004501), we get a palindrome (457404754).

The spelling of 105400253 in words is "one hundred five million, four hundred thousand, two hundred fifty-three".