126148571 has 4 divisors (see below), whose sum is σ = 126984144. Its totient is φ = 125313000.

The previous prime is 126148559. The next prime is 126148573. The reversal of 126148571 is 175841621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 175841621 = 239 ⋅735739.

It is a cyclic number.

It is not a de Polignac number, because 126148571 - 2⁶ = 126148507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126148573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417560 + ... + 417861.

It is an arithmetic number, because the mean of its divisors is an integer number (31746036).

Almost surely, 2^126148571 is an apocalyptic number.

126148571 is a deficient number, since it is larger than the sum of its proper divisors (835573).

126148571 is an equidigital number, since it uses as much as digits as its factorization.

126148571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835572.

The product of its digits is 13440, while the sum is 35.

The square root of 126148571 is about 11231.5880889570. The cubic root of 126148571 is about 501.5267612550.

The spelling of 126148571 in words is "one hundred twenty-six million, one hundred forty-eight thousand, five hundred seventy-one".