1801951241 has 8 divisors (see below), whose sum is σ = 1898551200. Its totient is φ = 1705527360.

The previous prime is 1801951237. The next prime is 1801951253. The reversal of 1801951241 is 1421591081.

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

It is a cyclic number.

It is not a de Polignac number, because 1801951241 - 2² = 1801951237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1801951198 and 1801951207.

It is not an unprimeable number, because it can be changed into a prime (1801951231) 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, 22736 + ... + 64193.

It is an arithmetic number, because the mean of its divisors is an integer number (237318900).

Almost surely, 2^1801951241 is an apocalyptic number.

It is an amenable number.

1801951241 is a deficient number, since it is larger than the sum of its proper divisors (96599959).

1801951241 is a wasteful number, since it uses less digits than its factorization.

1801951241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88039.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1801951241 is about 42449.3962383448. The cubic root of 1801951241 is about 1216.8797900831.

The spelling of 1801951241 in words is "one billion, eight hundred one million, nine hundred fifty-one thousand, two hundred forty-one".