434155121 has 4 divisors (see below), whose sum is σ = 443392512. Its totient is φ = 424917732.

The previous prime is 434155103. The next prime is 434155123. The reversal of 434155121 is 121551434.

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 a de Polignac number, because none of the positive numbers 2^k-434155121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434155123) 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, 4618625 + ... + 4618718.

It is an arithmetic number, because the mean of its divisors is an integer number (110848128).

Almost surely, 2^434155121 is an apocalyptic number.

It is an amenable number.

434155121 is a deficient number, since it is larger than the sum of its proper divisors (9237391).

434155121 is an equidigital number, since it uses as much as digits as its factorization.

434155121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9237390.

The product of its digits is 2400, while the sum is 26.

The square root of 434155121 is about 20836.3893465255. The cubic root of 434155121 is about 757.2076204634.

The spelling of 434155121 in words is "four hundred thirty-four million, one hundred fifty-five thousand, one hundred twenty-one".