1151801401 has 4 divisors (see below), whose sum is σ = 1151869312. Its totient is φ = 1151733492.

The previous prime is 1151801389. The next prime is 1151801423. The reversal of 1151801401 is 1041081511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1041081511 = 811 ⋅1283701.

It is a cyclic number.

It is not a de Polignac number, because 1151801401 - 2⁹ = 1151800889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151801461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15376 + ... + 50398.

It is an arithmetic number, because the mean of its divisors is an integer number (287967328).

Almost surely, 2^1151801401 is an apocalyptic number.

It is an amenable number.

1151801401 is a deficient number, since it is larger than the sum of its proper divisors (67911).

1151801401 is an equidigital number, since it uses as much as digits as its factorization.

1151801401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67910.

The product of its (nonzero) digits is 160, while the sum is 22.

The square root of 1151801401 is about 33938.1997312763. The cubic root of 1151801401 is about 1048.2363138720.

Adding to 1151801401 its reverse (1041081511), we get a palindrome (2192882912).

The spelling of 1151801401 in words is "one billion, one hundred fifty-one million, eight hundred one thousand, four hundred one".