1602421253 has 2 divisors, whose sum is σ = 1602421254. Its totient is φ = 1602421252.

The previous prime is 1602421199. The next prime is 1602421267. The reversal of 1602421253 is 3521242061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1578234529 + 24186724 = 39727^2 + 4918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1602421253 - 2³⁰ = 528679429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1602421453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801210626 + 801210627.

It is an arithmetic number, because the mean of its divisors is an integer number (801210627).

Almost surely, 2^1602421253 is an apocalyptic number.

It is an amenable number.

1602421253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602421253 is an equidigital number, since it uses as much as digits as its factorization.

1602421253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1602421253 is about 40030.2542210264. The cubic root of 1602421253 is about 1170.1967801584.

The spelling of 1602421253 in words is "one billion, six hundred two million, four hundred twenty-one thousand, two hundred fifty-three".