126547013 has 4 divisors (see below), whose sum is σ = 126572640. Its totient is φ = 126521388.

The previous prime is 126547009. The next prime is 126547027. The reversal of 126547013 is 310745621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310745621 = 1579 ⋅196799.

It is a cyclic number.

It is not a de Polignac number, because 126547013 - 2² = 126547009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126547313) 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, 2795 + ... + 16152.

It is an arithmetic number, because the mean of its divisors is an integer number (31643160).

Almost surely, 2^126547013 is an apocalyptic number.

It is an amenable number.

126547013 is a deficient number, since it is larger than the sum of its proper divisors (25627).

126547013 is an equidigital number, since it uses as much as digits as its factorization.

126547013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25626.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 126547013 is about 11249.3116678311. The cubic root of 126547013 is about 502.0542326979.

The spelling of 126547013 in words is "one hundred twenty-six million, five hundred forty-seven thousand, thirteen".