1901663241 has 8 divisors (see below), whose sum is σ = 2669001120. Its totient is φ = 1201050432.

The previous prime is 1901663233. The next prime is 1901663311. The reversal of 1901663241 is 1423661091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1901663241 - 2³ = 1901663233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1901663201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16681200 + ... + 16681313.

It is an arithmetic number, because the mean of its divisors is an integer number (333625140).

Almost surely, 2^1901663241 is an apocalyptic number.

It is an amenable number.

1901663241 is a deficient number, since it is larger than the sum of its proper divisors (767337879).

1901663241 is a wasteful number, since it uses less digits than its factorization.

1901663241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33362535.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1901663241 is about 43608.0639446422. The cubic root of 1901663241 is about 1238.9236325829.

The spelling of 1901663241 in words is "one billion, nine hundred one million, six hundred sixty-three thousand, two hundred forty-one".