105507031 has 4 divisors (see below), whose sum is σ = 120579472. Its totient is φ = 90434592.

The previous prime is 105507023. The next prime is 105507041. The reversal of 105507031 is 130705501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130705501 = 397 ⋅329233.

It is a cyclic number.

It is not a de Polignac number, because 105507031 - 2³ = 105507023 is a prime.

It is a super-2 number, since 2×105507031² = 22263467180869922, 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 = 105506993 and 105507011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105507011) 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, 7536210 + ... + 7536223.

It is an arithmetic number, because the mean of its divisors is an integer number (30144868).

Almost surely, 2^105507031 is an apocalyptic number.

105507031 is a deficient number, since it is larger than the sum of its proper divisors (15072441).

105507031 is an equidigital number, since it uses as much as digits as its factorization.

105507031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15072440.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 105507031 is about 10271.6615501096. The cubic root of 105507031 is about 472.5275495074.

The spelling of 105507031 in words is "one hundred five million, five hundred seven thousand, thirty-one".