145123135 has 8 divisors (see below), whose sum is σ = 184391856. Its totient is φ = 109269120.

The previous prime is 145123081. The next prime is 145123247. The reversal of 145123135 is 531321541.

It is a happy number.

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

It is not a de Polignac number, because 145123135 - 2¹⁵ = 145090367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853581 + ... + 853750.

It is an arithmetic number, because the mean of its divisors is an integer number (23048982).

Almost surely, 2^145123135 is an apocalyptic number.

145123135 is a deficient number, since it is larger than the sum of its proper divisors (39268721).

145123135 is a wasteful number, since it uses less digits than its factorization.

145123135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707353.

The product of its digits is 1800, while the sum is 25.

The square root of 145123135 is about 12046.7063963558. The cubic root of 145123135 is about 525.5074579416.

Adding to 145123135 its reverse (531321541), we get a palindrome (676444676).

The spelling of 145123135 in words is "one hundred forty-five million, one hundred twenty-three thousand, one hundred thirty-five".