107205231 has 16 divisors (see below), whose sum is σ = 170463744. Its totient is φ = 58596384.

The previous prime is 107205227. The next prime is 107205271. The reversal of 107205231 is 132502701.

It is not a de Polignac number, because 107205231 - 2² = 107205227 is a prime.

It is a super-2 number, since 2×107205231² = 22985923107526722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 107205198 and 107205207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107205221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110496 + ... + 111461.

It is an arithmetic number, because the mean of its divisors is an integer number (10653984).

Almost surely, 2^107205231 is an apocalyptic number.

107205231 is a deficient number, since it is larger than the sum of its proper divisors (63258513).

107205231 is a wasteful number, since it uses less digits than its factorization.

107205231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221990.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 107205231 is about 10353.9958953053. The cubic root of 107205231 is about 475.0492742974.

Adding to 107205231 its reverse (132502701), we get a palindrome (239707932).

It can be divided in two parts, 10720 and 5231, that added together give a palindrome (15951).

The spelling of 107205231 in words is "one hundred seven million, two hundred five thousand, two hundred thirty-one".