126473819 has 8 divisors (see below), whose sum is σ = 128242752. Its totient is φ = 124717320.

The previous prime is 126473813. The next prime is 126473821. The reversal of 126473819 is 918374621.

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

It is a cyclic number.

It is not a de Polignac number, because 126473819 - 2⁸ = 126473563 is a prime.

It is a super-2 number, since 2×126473819² = 31991253784889522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126473813) 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, 18392 + ... + 24314.

It is an arithmetic number, because the mean of its divisors is an integer number (16030344).

Almost surely, 2^126473819 is an apocalyptic number.

126473819 is a deficient number, since it is larger than the sum of its proper divisors (1768933).

126473819 is a wasteful number, since it uses less digits than its factorization.

126473819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217.

The product of its digits is 72576, while the sum is 41.

The square root of 126473819 is about 11246.0579315598. The cubic root of 126473819 is about 501.9574190218.

The spelling of 126473819 in words is "one hundred twenty-six million, four hundred seventy-three thousand, eight hundred nineteen".