1145402441 has 4 divisors (see below), whose sum is σ = 1205686800. Its totient is φ = 1085118084.

The previous prime is 1145402437. The next prime is 1145402471. The reversal of 1145402441 is 1442045411.

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 an emirpimes, since its reverse is a distinct semiprime: 1442045411 = 523 ⋅2757257.

It is a cyclic number.

It is not a de Polignac number, because 1145402441 - 2² = 1145402437 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145402441.

It is not an unprimeable number, because it can be changed into a prime (1145402431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30142151 + ... + 30142188.

It is an arithmetic number, because the mean of its divisors is an integer number (301421700).

Almost surely, 2^1145402441 is an apocalyptic number.

It is an amenable number.

1145402441 is a deficient number, since it is larger than the sum of its proper divisors (60284359).

1145402441 is an equidigital number, since it uses as much as digits as its factorization.

1145402441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60284358.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1145402441 is about 33843.7947192687. The cubic root of 1145402441 is about 1046.2915103193.

Adding to 1145402441 its reverse (1442045411), we get a palindrome (2587447852).

The spelling of 1145402441 in words is "one billion, one hundred forty-five million, four hundred two thousand, four hundred forty-one".