126904619 has 8 divisors (see below), whose sum is σ = 128924640. Its totient is φ = 124891200.

The previous prime is 126904579. The next prime is 126904649. The reversal of 126904619 is 916409621.

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-126904619 is a prime.

It is a super-2 number, since 2×126904619² = 32209564647070322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126904649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49079 + ... + 51599.

It is an arithmetic number, because the mean of its divisors is an integer number (16115580).

Almost surely, 2^126904619 is an apocalyptic number.

126904619 is a deficient number, since it is larger than the sum of its proper divisors (2020021).

126904619 is an equidigital number, since it uses as much as digits as its factorization.

126904619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3301.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 126904619 is about 11265.1950271622. The cubic root of 126904619 is about 502.5267020455.

The spelling of 126904619 in words is "one hundred twenty-six million, nine hundred four thousand, six hundred nineteen".