1145442355 has 4 divisors (see below), whose sum is σ = 1374530832. Its totient is φ = 916353880.

The previous prime is 1145442349. The next prime is 1145442359. The reversal of 1145442355 is 5532445411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5532445411 = 31 ⋅178465981.

It is not a de Polignac number, because 1145442355 - 2¹⁹ = 1144918067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145442355.

It is not an unprimeable number, because it can be changed into a prime (1145442359) 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, 114544231 + ... + 114544240.

It is an arithmetic number, because the mean of its divisors is an integer number (343632708).

Almost surely, 2^1145442355 is an apocalyptic number.

1145442355 is a deficient number, since it is larger than the sum of its proper divisors (229088477).

1145442355 is an equidigital number, since it uses as much as digits as its factorization.

1145442355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229088476.

The product of its digits is 48000, while the sum is 34.

The square root of 1145442355 is about 33844.3843938695. The cubic root of 1145442355 is about 1046.3036636006.

Adding to 1145442355 its reverse (5532445411), we get a palindrome (6677887766).

The spelling of 1145442355 in words is "one billion, one hundred forty-five million, four hundred forty-two thousand, three hundred fifty-five".