1154421201 has 16 divisors (see below), whose sum is σ = 1589049344. Its totient is φ = 744920064.

The previous prime is 1154421161. The next prime is 1154421239. The reversal of 1154421201 is 1021244511.

It is not a de Polignac number, because 1154421201 - 2⁶ = 1154421137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154421251) 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, 5521 + ... + 48366.

It is an arithmetic number, because the mean of its divisors is an integer number (99315584).

Almost surely, 2^1154421201 is an apocalyptic number.

It is an amenable number.

1154421201 is a deficient number, since it is larger than the sum of its proper divisors (434628143).

1154421201 is a wasteful number, since it uses less digits than its factorization.

1154421201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54120.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1154421201 is about 33976.7744348989. The cubic root of 1154421201 is about 1049.0304583149.

Adding to 1154421201 its reverse (1021244511), we get a palindrome (2175665712).

The spelling of 1154421201 in words is "one billion, one hundred fifty-four million, four hundred twenty-one thousand, two hundred one".