1004155423429 has 4 divisors (see below), whose sum is σ = 1004328350784. Its totient is φ = 1003982496076.

The previous prime is 1004155423391. The next prime is 1004155423471. The reversal of 1004155423429 is 9243245514001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1004155423429 - 2⁹ = 1004155422917 is a prime.

It is a super-2 number, since 2×1004155423429² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004155423391 and 1004155423400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004155423499) 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, 86454967 + ... + 86466580.

It is an arithmetic number, because the mean of its divisors is an integer number (251082087696).

Almost surely, 2^{1004155423429} is an apocalyptic number.

It is an amenable number.

1004155423429 is a deficient number, since it is larger than the sum of its proper divisors (172927355).

1004155423429 is an equidigital number, since it uses as much as digits as its factorization.

1004155423429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172927354.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1004155423429 in words is "one trillion, four billion, one hundred fifty-five million, four hundred twenty-three thousand, four hundred twenty-nine".