1145421534 has 8 divisors (see below), whose sum is σ = 2290843080. Its totient is φ = 381807176.

The previous prime is 1145421521. The next prime is 1145421539. The reversal of 1145421534 is 4351245411.

It is a sphenic number, since it is the product of 3 distinct primes.

1145421534 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145421539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95451789 + ... + 95451800.

It is an arithmetic number, because the mean of its divisors is an integer number (286355385).

Almost surely, 2^1145421534 is an apocalyptic number.

1145421534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1145421534 is a wasteful number, since it uses less digits than its factorization.

1145421534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190903594.

The product of its digits is 9600, while the sum is 30.

The square root of 1145421534 is about 33844.0767934361. The cubic root of 1145421534 is about 1046.2973239187.

Adding to 1145421534 its reverse (4351245411), we get a palindrome (5496666945).

The spelling of 1145421534 in words is "one billion, one hundred forty-five million, four hundred twenty-one thousand, five hundred thirty-four".