1900472731 has 2 divisors, whose sum is σ = 1900472732. Its totient is φ = 1900472730.

The previous prime is 1900472719. The next prime is 1900472741. The reversal of 1900472731 is 1372740091.

It is a strong prime.

It is an emirp because it is prime and its reverse (1372740091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1900472731 - 2¹¹ = 1900470683 is a prime.

It is a super-2 number, since 2×1900472731² = 7223593202549196722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1900472711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950236365 + 950236366.

It is an arithmetic number, because the mean of its divisors is an integer number (950236366).

Almost surely, 2^1900472731 is an apocalyptic number.

1900472731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1900472731 is an equidigital number, since it uses as much as digits as its factorization.

1900472731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 1900472731 is about 43594.4116946198. The cubic root of 1900472731 is about 1238.6650416049.

The spelling of 1900472731 in words is "one billion, nine hundred million, four hundred seventy-two thousand, seven hundred thirty-one".