1902093613 has 12 divisors (see below), whose sum is σ = 2213925372. Its totient is φ = 1629418560.

The previous prime is 1902093601. The next prime is 1902093617. The reversal of 1902093613 is 3163902091.

It can be written as a sum of positive squares in 2 ways, for example, as 623101444 + 1278992169 = 24962^2 + 35763^2 .

It is not a de Polignac number, because 1902093613 - 2⁵ = 1902093581 is a prime.

It is a super-2 number, since 2×1902093613² = 7235920225230787538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902093617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81633 + ... + 102313.

It is an arithmetic number, because the mean of its divisors is an integer number (184493781).

Almost surely, 2^1902093613 is an apocalyptic number.

It is an amenable number.

1902093613 is a deficient number, since it is larger than the sum of its proper divisors (311831759).

1902093613 is a wasteful number, since it uses less digits than its factorization.

1902093613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22572 (or 22565 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 1902093613 is about 43612.9982115424. The cubic root of 1902093613 is about 1239.0170872339.

The spelling of 1902093613 in words is "one billion, nine hundred two million, ninety-three thousand, six hundred thirteen".