1145113450 has 48 divisors (see below), whose sum is σ = 2303899416. Its totient is φ = 420940800.

The previous prime is 1145113447. The next prime is 1145113471. The reversal of 1145113450 is 543115411.

It can be written as a sum of positive squares in 12 ways, for example, as 65399569 + 1079713881 = 8087^2 + 32859^2 .

It is a super-2 number, since 2×1145113450² = 2622569626741805000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147670 + ... + 155230.

Almost surely, 2^1145113450 is an apocalyptic number.

1145113450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145113450 is an abundant number, since it is smaller than the sum of its proper divisors (1158785966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145113450 is a wasteful number, since it uses less digits than its factorization.

1145113450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7819 (or 7814 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1145113450 is about 33839.5249671150. The cubic root of 1145113450 is about 1046.2035079857.

Adding to 1145113450 its reverse (543115411), we get a palindrome (1688228861).

The spelling of 1145113450 in words is "one billion, one hundred forty-five million, one hundred thirteen thousand, four hundred fifty".