105415031 has 4 divisors (see below), whose sum is σ = 107657952. Its totient is φ = 103172112.

The previous prime is 105415019. The next prime is 105415043. The reversal of 105415031 is 130514501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130514501 = 13 ⋅10039577.

It is an interprime number because it is at equal distance from previous prime (105415019) and next prime (105415043).

It is a cyclic number.

It is not a de Polignac number, because 105415031 - 2¹⁰ = 105414007 is a prime.

It is a super-2 number, since 2×105415031² = 22224657521461922, 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 = 105414994 and 105415012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105415631) 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, 1121390 + ... + 1121483.

It is an arithmetic number, because the mean of its divisors is an integer number (26914488).

Almost surely, 2^105415031 is an apocalyptic number.

105415031 is a deficient number, since it is larger than the sum of its proper divisors (2242921).

105415031 is an equidigital number, since it uses as much as digits as its factorization.

105415031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242920.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 105415031 is about 10267.1822327258. The cubic root of 105415031 is about 472.3901647411.

Adding to 105415031 its reverse (130514501), we get a palindrome (235929532).

The spelling of 105415031 in words is "one hundred five million, four hundred fifteen thousand, thirty-one".