1905472513 has 32 divisors (see below), whose sum is σ = 2399385600. Its totient is φ = 1475438976.

The previous prime is 1905472507. The next prime is 1905472519. The reversal of 1905472513 is 3152745091.

It is an interprime number because it is at equal distance from previous prime (1905472507) and next prime (1905472519).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1905472513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1905472519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1250370 + ... + 1251892.

It is an arithmetic number, because the mean of its divisors is an integer number (74980800).

Almost surely, 2^1905472513 is an apocalyptic number.

It is an amenable number.

1905472513 is a deficient number, since it is larger than the sum of its proper divisors (493913087).

1905472513 is a wasteful number, since it uses less digits than its factorization.

1905472513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1905472513 is about 43651.7183281483. The cubic root of 1905472513 is about 1239.7503210875.

The spelling of 1905472513 in words is "one billion, nine hundred five million, four hundred seventy-two thousand, five hundred thirteen".