145552539 has 8 divisors (see below), whose sum is σ = 211712832. Its totient is φ = 88213640.

The previous prime is 145552529. The next prime is 145552553. The reversal of 145552539 is 935255541.

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

It is a cyclic number.

It is not a de Polignac number, because 145552539 - 2¹⁵ = 145519771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145552497 and 145552506.

It is not an unprimeable number, because it can be changed into a prime (145552529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205309 + ... + 2205374.

It is an arithmetic number, because the mean of its divisors is an integer number (26464104).

Almost surely, 2^145552539 is an apocalyptic number.

145552539 is a deficient number, since it is larger than the sum of its proper divisors (66160293).

145552539 is a wasteful number, since it uses less digits than its factorization.

145552539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410697.

The product of its digits is 135000, while the sum is 39.

The square root of 145552539 is about 12064.5156968691. The cubic root of 145552539 is about 526.0252545620.

The spelling of 145552539 in words is "one hundred forty-five million, five hundred fifty-two thousand, five hundred thirty-nine".