126871499 has 4 divisors (see below), whose sum is σ = 130964160. Its totient is φ = 122778840.

The previous prime is 126871489. The next prime is 126871523. The reversal of 126871499 is 994178621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994178621 = 251 ⋅3960871.

It is a cyclic number.

It is not a de Polignac number, because 126871499 - 2¹⁶ = 126805963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126871469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2046284 + ... + 2046345.

It is an arithmetic number, because the mean of its divisors is an integer number (32741040).

Almost surely, 2^126871499 is an apocalyptic number.

126871499 is a deficient number, since it is larger than the sum of its proper divisors (4092661).

126871499 is an equidigital number, since it uses as much as digits as its factorization.

126871499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092660.

The product of its digits is 217728, while the sum is 47.

The square root of 126871499 is about 11263.7249167405. The cubic root of 126871499 is about 502.4829811980.

The spelling of 126871499 in words is "one hundred twenty-six million, eight hundred seventy-one thousand, four hundred ninety-nine".