1473742421 has 2 divisors, whose sum is σ = 1473742422. Its totient is φ = 1473742420.

The previous prime is 1473742399. The next prime is 1473742447. The reversal of 1473742421 is 1242473741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 811452196 + 662290225 = 28486^2 + 25735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1473742421 - 2¹⁰ = 1473741397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1473742321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736871210 + 736871211.

It is an arithmetic number, because the mean of its divisors is an integer number (736871211).

Almost surely, 2^1473742421 is an apocalyptic number.

It is an amenable number.

1473742421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1473742421 is an equidigital number, since it uses as much as digits as its factorization.

1473742421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 35.

The square root of 1473742421 is about 38389.3529640706. The cubic root of 1473742421 is about 1137.9954567643.

The spelling of 1473742421 in words is "one billion, four hundred seventy-three million, seven hundred forty-two thousand, four hundred twenty-one".