145413331 has 12 divisors (see below), whose sum is σ = 169351560. Its totient is φ = 124494720.

The previous prime is 145413283. The next prime is 145413361. The reversal of 145413331 is 133314541.

145413331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145413331 - 2²¹ = 143316179 is a prime.

It is a super-2 number, since 2×145413331² = 42290073665031122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145413296 and 145413305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145413361) 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, 76035 + ... + 77923.

It is an arithmetic number, because the mean of its divisors is an integer number (14112630).

Almost surely, 2^145413331 is an apocalyptic number.

145413331 is a deficient number, since it is larger than the sum of its proper divisors (23938229).

145413331 is a wasteful number, since it uses less digits than its factorization.

145413331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474 (or 3467 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 145413331 is about 12058.7450010356. The cubic root of 145413331 is about 525.8575023501.

Adding to 145413331 its reverse (133314541), we get a palindrome (278727872).

The spelling of 145413331 in words is "one hundred forty-five million, four hundred thirteen thousand, three hundred thirty-one".