126255161 has 8 divisors (see below), whose sum is σ = 127344840. Its totient is φ = 125169408.

The previous prime is 126255149. The next prime is 126255197. The reversal of 126255161 is 161552621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4020025 + 122235136 = 2005^2 + 11056^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126255161 - 2¹⁰ = 126254137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126255061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124625 + ... + 125633.

It is an arithmetic number, because the mean of its divisors is an integer number (15918105).

Almost surely, 2^126255161 is an apocalyptic number.

It is an amenable number.

126255161 is a deficient number, since it is larger than the sum of its proper divisors (1089679).

126255161 is a wasteful number, since it uses less digits than its factorization.

126255161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its digits is 3600, while the sum is 29.

The square root of 126255161 is about 11236.3321862608. The cubic root of 126255161 is about 501.6679775146.

The spelling of 126255161 in words is "one hundred twenty-six million, two hundred fifty-five thousand, one hundred sixty-one".