1603023397 has 2 divisors, whose sum is σ = 1603023398. Its totient is φ = 1603023396.

The previous prime is 1603023349. The next prime is 1603023403. The reversal of 1603023397 is 7933203061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1019269476 + 583753921 = 31926^2 + 24161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1603023397 - 2¹⁵ = 1602990629 is a prime.

It is a super-2 number, since 2×1603023397² = 5139368022658839218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1603023197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801511698 + 801511699.

It is an arithmetic number, because the mean of its divisors is an integer number (801511699).

Almost surely, 2^1603023397 is an apocalyptic number.

It is an amenable number.

1603023397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603023397 is an equidigital number, since it uses as much as digits as its factorization.

1603023397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 1603023397 is about 40037.7746259704. The cubic root of 1603023397 is about 1170.3433372779.

The spelling of 1603023397 in words is "one billion, six hundred three million, twenty-three thousand, three hundred ninety-seven".