126228658 has 4 divisors (see below), whose sum is σ = 189342990. Its totient is φ = 63114328.

The previous prime is 126228643. The next prime is 126228659. The reversal of 126228658 is 856822621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 856822621 = 1951 ⋅439171.

It can be written as a sum of positive squares in only one way, i.e., 116575209 + 9653449 = 10797^2 + 3107^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126228658.

It is not an unprimeable number, because it can be changed into a prime (126228659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31557163 + ... + 31557166.

Almost surely, 2^126228658 is an apocalyptic number.

126228658 is a deficient number, since it is larger than the sum of its proper divisors (63114332).

126228658 is an equidigital number, since it uses as much as digits as its factorization.

126228658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63114331.

The product of its digits is 92160, while the sum is 40.

The square root of 126228658 is about 11235.1527804476. The cubic root of 126228658 is about 501.6328723177.

The spelling of 126228658 in words is "one hundred twenty-six million, two hundred twenty-eight thousand, six hundred fifty-eight".