1901369117 has 4 divisors (see below), whose sum is σ = 1937244060. Its totient is φ = 1865494176.

The previous prime is 1901369089. The next prime is 1901369123. The reversal of 1901369117 is 7119631091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1466813401 + 434555716 = 38299^2 + 20846^2 .

It is a cyclic number.

It is not a de Polignac number, because 1901369117 - 2¹² = 1901365021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901369147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17937392 + ... + 17937497.

It is an arithmetic number, because the mean of its divisors is an integer number (484311015).

Almost surely, 2^1901369117 is an apocalyptic number.

It is an amenable number.

1901369117 is a deficient number, since it is larger than the sum of its proper divisors (35874943).

1901369117 is an equidigital number, since it uses as much as digits as its factorization.

1901369117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35874942.

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 1901369117 is about 43604.6914563101. The cubic root of 1901369117 is about 1238.8597558749.

The spelling of 1901369117 in words is "one billion, nine hundred one million, three hundred sixty-nine thousand, one hundred seventeen".