145331011 has 12 divisors (see below), whose sum is σ = 179004168. Its totient is φ = 117241152.

The previous prime is 145331009. The next prime is 145331029. The reversal of 145331011 is 110133541.

It is not a de Polignac number, because 145331011 - 2¹ = 145331009 is a prime.

It is a super-2 number, since 2×145331011² = 42242205516564242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145331011.

It is not an unprimeable number, because it can be changed into a prime (145331051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86401 + ... + 88066.

It is an arithmetic number, because the mean of its divisors is an integer number (14917014).

Almost surely, 2^145331011 is an apocalyptic number.

145331011 is a deficient number, since it is larger than the sum of its proper divisors (33673157).

145331011 is a wasteful number, since it uses less digits than its factorization.

145331011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174498 (or 174491 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 145331011 is about 12055.3312273035. The cubic root of 145331011 is about 525.7582524841.

Adding to 145331011 its reverse (110133541), we get a palindrome (255464552).

The spelling of 145331011 in words is "one hundred forty-five million, three hundred thirty-one thousand, eleven".