105531401 has 2 divisors, whose sum is σ = 105531402. Its totient is φ = 105531400.

The previous prime is 105531397. The next prime is 105531443. The reversal of 105531401 is 104135501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74839801 + 30691600 = 8651^2 + 5540^2 .

It is a cyclic number.

It is not a de Polignac number, because 105531401 - 2² = 105531397 is a prime.

It is a super-2 number, since 2×105531401² = 22273753194045602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105533401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52765700 + 52765701.

It is an arithmetic number, because the mean of its divisors is an integer number (52765701).

Almost surely, 2^105531401 is an apocalyptic number.

It is an amenable number.

105531401 is a deficient number, since it is larger than the sum of its proper divisors (1).

105531401 is an equidigital number, since it uses as much as digits as its factorization.

105531401 is an odious number, because the sum of its binary digits is odd.

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

The square root of 105531401 is about 10272.8477551261. The cubic root of 105531401 is about 472.5639281568.

Adding to 105531401 its reverse (104135501), we get a palindrome (209666902).

The spelling of 105531401 in words is "one hundred five million, five hundred thirty-one thousand, four hundred one".