1901713729 has 16 divisors (see below), whose sum is σ = 1962963072. Its totient is φ = 1841609088.

The previous prime is 1901713717. The next prime is 1901713733. The reversal of 1901713729 is 9273171091.

It is a cyclic number.

It is not a de Polignac number, because 1901713729 - 2⁹ = 1901713217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1901713691 and 1901713700.

It is not an unprimeable number, because it can be changed into a prime (1901713739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2459787 + ... + 2460559.

It is an arithmetic number, because the mean of its divisors is an integer number (122685192).

Almost surely, 2^1901713729 is an apocalyptic number.

It is an amenable number.

1901713729 is a deficient number, since it is larger than the sum of its proper divisors (61249343).

1901713729 is an equidigital number, since it uses as much as digits as its factorization.

1901713729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 1901713729 is about 43608.6428245594. The cubic root of 1901713729 is about 1238.9345967083.

The spelling of 1901713729 in words is "one billion, nine hundred one million, seven hundred thirteen thousand, seven hundred twenty-nine".