145411231 has 8 divisors (see below), whose sum is σ = 166265984. Its totient is φ = 124576920.

The previous prime is 145411229. The next prime is 145411243. The reversal of 145411231 is 132114541.

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 145411231 - 2¹ = 145411229 is a prime.

It is a super-2 number, since 2×145411231² = 42288852201870722, which 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 (145411261) 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, 15916 + ... + 23326.

It is an arithmetic number, because the mean of its divisors is an integer number (20783248).

Almost surely, 2^145411231 is an apocalyptic number.

145411231 is a deficient number, since it is larger than the sum of its proper divisors (20854753).

145411231 is an equidigital number, since it uses as much as digits as its factorization.

145411231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221.

The product of its digits is 480, while the sum is 22.

The square root of 145411231 is about 12058.6579269834. The cubic root of 145411231 is about 525.8549709315.

Adding to 145411231 its reverse (132114541), we get a palindrome (277525772).

The spelling of 145411231 in words is "one hundred forty-five million, four hundred eleven thousand, two hundred thirty-one".