126000019 has 8 divisors (see below), whose sum is σ = 129084912. Its totient is φ = 122922240.

The previous prime is 126000013. The next prime is 126000029. The reversal of 126000019 is 910000621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126000019 is a prime.

It is a super-2 number, since 2×126000019² = 31752009576000722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126000013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57447 + ... + 59599.

It is an arithmetic number, because the mean of its divisors is an integer number (16135614).

Almost surely, 2^126000019 is an apocalyptic number.

126000019 is a deficient number, since it is larger than the sum of its proper divisors (3084893).

126000019 is a wasteful number, since it uses less digits than its factorization.

126000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 126000019 is about 11224.9730066491. The cubic root of 126000019 is about 501.3298186956.

The spelling of 126000019 in words is "one hundred twenty-six million, nineteen", and thus it is an aban number.