126148519 has 4 divisors (see below), whose sum is σ = 144169744. Its totient is φ = 108127296.

The previous prime is 126148507. The next prime is 126148523. The reversal of 126148519 is 915841621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 915841621 = 10343 ⋅88547.

It is a cyclic number.

It is not a de Polignac number, because 126148519 - 2¹⁹ = 125624231 is a prime.

It is a super-2 number, since 2×126148519² = 31826897691786722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126148559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9010602 + ... + 9010615.

It is an arithmetic number, because the mean of its divisors is an integer number (36042436).

Almost surely, 2^126148519 is an apocalyptic number.

126148519 is a deficient number, since it is larger than the sum of its proper divisors (18021225).

126148519 is an equidigital number, since it uses as much as digits as its factorization.

126148519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18021224.

The product of its digits is 17280, while the sum is 37.

The square root of 126148519 is about 11231.5857740570. The cubic root of 126148519 is about 501.5266923431.

The spelling of 126148519 in words is "one hundred twenty-six million, one hundred forty-eight thousand, five hundred nineteen".