1154344401 has 72 divisors (see below), whose sum is σ = 2052984960. Its totient is φ = 621903744.

The previous prime is 1154344397. The next prime is 1154344423. The reversal of 1154344401 is 1044434511.

It is not a de Polignac number, because 1154344401 - 2² = 1154344397 is a prime.

It is a super-3 number, since 3×1154344401³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1154344481) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 739660 + ... + 741218.

It is an arithmetic number, because the mean of its divisors is an integer number (28513680).

Almost surely, 2^1154344401 is an apocalyptic number.

It is an amenable number.

1154344401 is a deficient number, since it is larger than the sum of its proper divisors (898640559).

1154344401 is a wasteful number, since it uses less digits than its factorization.

1154344401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1154344401 is about 33975.6442323026. The cubic root of 1154344401 is about 1049.0071949035.

Adding to 1154344401 its reverse (1044434511), we get a palindrome (2198778912).

The spelling of 1154344401 in words is "one billion, one hundred fifty-four million, three hundred forty-four thousand, four hundred one".