1150221454 has 4 divisors (see below), whose sum is σ = 1725332184. Its totient is φ = 575110726.

The previous prime is 1150221451. The next prime is 1150221473. The reversal of 1150221454 is 4541220511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4541220511 = 47 ⋅96621713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150221451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287555362 + ... + 287555365.

It is an arithmetic number, because the mean of its divisors is an integer number (431333046).

Almost surely, 2^1150221454 is an apocalyptic number.

1150221454 is a deficient number, since it is larger than the sum of its proper divisors (575110730).

1150221454 is an equidigital number, since it uses as much as digits as its factorization.

1150221454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575110729.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1150221454 is about 33914.9149195454. The cubic root of 1150221454 is about 1047.7567995922.

Adding to 1150221454 its reverse (4541220511), we get a palindrome (5691441965).

The spelling of 1150221454 in words is "one billion, one hundred fifty million, two hundred twenty-one thousand, four hundred fifty-four".