1504450121 has 4 divisors (see below), whose sum is σ = 1504788432. Its totient is φ = 1504111812.

The previous prime is 1504450117. The next prime is 1504450141. The reversal of 1504450121 is 1210544051.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1210544051 = 359 ⋅3371989.

It is a cyclic number.

It is not a de Polignac number, because 1504450121 - 2² = 1504450117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1504450111) 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, 162395 + ... + 171408.

It is an arithmetic number, because the mean of its divisors is an integer number (376197108).

Almost surely, 2^1504450121 is an apocalyptic number.

It is an amenable number.

1504450121 is a deficient number, since it is larger than the sum of its proper divisors (338311).

1504450121 is an equidigital number, since it uses as much as digits as its factorization.

1504450121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338310.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1504450121 is about 38787.2417297234. The cubic root of 1504450121 is about 1145.8451508920.

Adding to 1504450121 its reverse (1210544051), we get a palindrome (2714994172).

The spelling of 1504450121 in words is "one billion, five hundred four million, four hundred fifty thousand, one hundred twenty-one".