126255105 has 40 divisors (see below), whose sum is σ = 227391912. Its totient is φ = 67018752.

The previous prime is 126255079. The next prime is 126255109. The reversal of 126255105 is 501552621.

126255105 is a `hidden beast` number, since 126 + 25 + 510 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15752961 + 110502144 = 3969^2 + 10512^2 .

It is not a de Polignac number, because 126255105 - 2¹² = 126251009 is a prime.

It is a super-2 number, since 2×126255105² = 31880703077122050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126255109) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 103479 + ... + 104691.

It is a Proth number, since it is equal to 3853 ⋅ 2¹⁵ + 1 and 3853 < 2¹⁵.

Almost surely, 2^126255105 is an apocalyptic number.

126255105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126255105 is a deficient number, since it is larger than the sum of its proper divisors (101136807).

126255105 is a wasteful number, since it uses less digits than its factorization.

126255105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 126255105 is about 11236.3296943441. The cubic root of 126255105 is about 501.6679033436.

The spelling of 126255105 in words is "one hundred twenty-six million, two hundred fifty-five thousand, one hundred five".