106445261 has 4 divisors (see below), whose sum is σ = 114633372. Its totient is φ = 98257152.

The previous prime is 106445257. The next prime is 106445281. The reversal of 106445261 is 162544601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38068900 + 68376361 = 6170^2 + 8269^2 .

It is a cyclic number.

It is not a de Polignac number, because 106445261 - 2² = 106445257 is a prime.

It is a super-2 number, since 2×106445261² = 22661187178716242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106445221) 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, 4094036 + ... + 4094061.

It is an arithmetic number, because the mean of its divisors is an integer number (28658343).

Almost surely, 2^106445261 is an apocalyptic number.

It is an amenable number.

106445261 is a deficient number, since it is larger than the sum of its proper divisors (8188111).

106445261 is an equidigital number, since it uses as much as digits as its factorization.

106445261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8188110.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 106445261 is about 10317.2312661876. The cubic root of 106445261 is about 473.9240814989.

Adding to 106445261 its reverse (162544601), we get a palindrome (268989862).

The spelling of 106445261 in words is "one hundred six million, four hundred forty-five thousand, two hundred sixty-one".