104245531 has 4 divisors (see below), whose sum is σ = 112264432. Its totient is φ = 96226632.

The previous prime is 104245487. The next prime is 104245549. The reversal of 104245531 is 135542401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135542401 = 127 ⋅1067263.

It is a cyclic number.

It is not a de Polignac number, because 104245531 - 2⁷ = 104245403 is a prime.

It is a super-2 number, since 2×104245531² = 21734261466943922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104245496 and 104245505.

It is not an unprimeable number, because it can be changed into a prime (104245931) 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, 4009431 + ... + 4009456.

It is an arithmetic number, because the mean of its divisors is an integer number (28066108).

Almost surely, 2^104245531 is an apocalyptic number.

104245531 is a deficient number, since it is larger than the sum of its proper divisors (8018901).

104245531 is an equidigital number, since it uses as much as digits as its factorization.

104245531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018900.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 104245531 is about 10210.0700781141. The cubic root of 104245531 is about 470.6367271730.

Adding to 104245531 its reverse (135542401), we get a palindrome (239787932).

The spelling of 104245531 in words is "one hundred four million, two hundred forty-five thousand, five hundred thirty-one".