145552032013 has 8 divisors (see below), whose sum is σ = 146366654616. Its totient is φ = 144737524800.

The previous prime is 145552032007. The next prime is 145552032077. The reversal of 145552032013 is 310230255541.

It can be written as a sum of positive squares in 4 ways, for example, as 4659154564 + 140892877449 = 68258^2 + 375357^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145552032013 is a prime.

It is a super-2 number, since 2×145552032013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145552032113) 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 7 ways as a sum of consecutive naturals, for example, 4323795 + ... + 4357327.

It is an arithmetic number, because the mean of its divisors is an integer number (18295831827).

Almost surely, 2^145552032013 is an apocalyptic number.

It is an amenable number.

145552032013 is a deficient number, since it is larger than the sum of its proper divisors (814622603).

145552032013 is a wasteful number, since it uses less digits than its factorization.

145552032013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57695.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 145552032013 its reverse (310230255541), we get a palindrome (455782287554).

The spelling of 145552032013 in words is "one hundred forty-five billion, five hundred fifty-two million, thirty-two thousand, thirteen".