105231497 has 4 divisors (see below), whose sum is σ = 120264576. Its totient is φ = 90198420.

The previous prime is 105231493. The next prime is 105231521. The reversal of 105231497 is 794132501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 794132501 = 97 ⋅8186933.

It is a cyclic number.

It is not a de Polignac number, because 105231497 - 2² = 105231493 is a prime.

It is a super-2 number, since 2×105231497² = 22147335921722018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105231491) 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, 7516529 + ... + 7516542.

It is an arithmetic number, because the mean of its divisors is an integer number (30066144).

Almost surely, 2^105231497 is an apocalyptic number.

It is an amenable number.

105231497 is a deficient number, since it is larger than the sum of its proper divisors (15033079).

105231497 is an equidigital number, since it uses as much as digits as its factorization.

105231497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15033078.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 105231497 is about 10258.2404436628. The cubic root of 105231497 is about 472.1158521158.

Adding to 105231497 its reverse (794132501), we get a palindrome (899363998).

The spelling of 105231497 in words is "one hundred five million, two hundred thirty-one thousand, four hundred ninety-seven".