145358109 has 48 divisors (see below), whose sum is σ = 242004672. Its totient is φ = 83280384.

The previous prime is 145358099. The next prime is 145358117. The reversal of 145358109 is 901853541.

145358109 is a `hidden beast` number, since 14 + 535 + 8 + 109 = 666.

It is not a de Polignac number, because 145358109 - 2⁵ = 145358077 is a prime.

It is a super-2 number, since 2×145358109² = 42257959704111762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145358159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212482 + ... + 213164.

It is an arithmetic number, because the mean of its divisors is an integer number (5041764).

Almost surely, 2^145358109 is an apocalyptic number.

It is an amenable number.

145358109 is a deficient number, since it is larger than the sum of its proper divisors (96646563).

145358109 is a wasteful number, since it uses less digits than its factorization.

145358109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 145358109 is about 12056.4550760163. The cubic root of 145358109 is about 525.7909275744.

The spelling of 145358109 in words is "one hundred forty-five million, three hundred fifty-eight thousand, one hundred nine".