126491258 has 4 divisors (see below), whose sum is σ = 189736890. Its totient is φ = 63245628.

The previous prime is 126491249. The next prime is 126491263. The reversal of 126491258 is 852194621.

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

It can be written as a sum of positive squares in only one way, i.e., 102353689 + 24137569 = 10117^2 + 4913^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31622813 + ... + 31622816.

Almost surely, 2^126491258 is an apocalyptic number.

126491258 is a deficient number, since it is larger than the sum of its proper divisors (63245632).

126491258 is an equidigital number, since it uses as much as digits as its factorization.

126491258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63245631.

The product of its digits is 34560, while the sum is 38.

The square root of 126491258 is about 11246.8332431845. The cubic root of 126491258 is about 501.9804889694.

The spelling of 126491258 in words is "one hundred twenty-six million, four hundred ninety-one thousand, two hundred fifty-eight".