1602421001 has 2 divisors, whose sum is σ = 1602421002. Its totient is φ = 1602421000.

The previous prime is 1602420983. The next prime is 1602421057. The reversal of 1602421001 is 1001242061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1560171001 + 42250000 = 39499^2 + 6500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1602421001 - 2²² = 1598226697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1602423001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801210500 + 801210501.

It is an arithmetic number, because the mean of its divisors is an integer number (801210501).

Almost surely, 2^1602421001 is an apocalyptic number.

It is an amenable number.

1602421001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602421001 is an equidigital number, since it uses as much as digits as its factorization.

1602421001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1602421001 is about 40030.2510734070. The cubic root of 1602421001 is about 1170.1967188159.

Adding to 1602421001 its reverse (1001242061), we get a palindrome (2603663062).

The spelling of 1602421001 in words is "one billion, six hundred two million, four hundred twenty-one thousand, one".