126613646 has 8 divisors (see below), whose sum is σ = 193139640. Its totient is φ = 62233768.

The previous prime is 126613631. The next prime is 126613649. The reversal of 126613646 is 646316621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126613649) 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, 536381 + ... + 536616.

It is an arithmetic number, because the mean of its divisors is an integer number (24142455).

Almost surely, 2^126613646 is an apocalyptic number.

126613646 is a deficient number, since it is larger than the sum of its proper divisors (66525994).

126613646 is a wasteful number, since it uses less digits than its factorization.

126613646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073058.

The product of its digits is 31104, while the sum is 35.

The square root of 126613646 is about 11252.2729259470. The cubic root of 126613646 is about 502.1423356857.

The spelling of 126613646 in words is "one hundred twenty-six million, six hundred thirteen thousand, six hundred forty-six".