1503424421 has 2 divisors, whose sum is σ = 1503424422. Its totient is φ = 1503424420.

The previous prime is 1503424397. The next prime is 1503424451. The reversal of 1503424421 is 1244243051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 970322500 + 533101921 = 31150^2 + 23089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1503424421 - 2⁶ = 1503424357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1503424451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751712210 + 751712211.

It is an arithmetic number, because the mean of its divisors is an integer number (751712211).

Almost surely, 2^1503424421 is an apocalyptic number.

It is an amenable number.

1503424421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1503424421 is an equidigital number, since it uses as much as digits as its factorization.

1503424421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1503424421 is about 38774.0173440927. The cubic root of 1503424421 is about 1145.5846879378.

Adding to 1503424421 its reverse (1244243051), we get a palindrome (2747667472).

The spelling of 1503424421 in words is "one billion, five hundred three million, four hundred twenty-four thousand, four hundred twenty-one".