1254439113019 has 4 divisors (see below), whose sum is σ = 1254618916344. Its totient is φ = 1254259309696.

The previous prime is 1254439113017. The next prime is 1254439113029. The reversal of 1254439113019 is 9103119344521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1254439113019 - 2¹ = 1254439113017 is a prime.

It is a super-2 number, since 2×1254439113019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254439113017) 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, 89891197 + ... + 89905150.

It is an arithmetic number, because the mean of its divisors is an integer number (313654729086).

Almost surely, 2^{1254439113019} is an apocalyptic number.

1254439113019 is a deficient number, since it is larger than the sum of its proper divisors (179803325).

1254439113019 is an equidigital number, since it uses as much as digits as its factorization.

1254439113019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179803324.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 1254439113019 in words is "one trillion, two hundred fifty-four billion, four hundred thirty-nine million, one hundred thirteen thousand, nineteen".