145313451 has 12 divisors (see below), whose sum is σ = 210085512. Its totient is φ = 96788736.

The previous prime is 145313449. The next prime is 145313503. The reversal of 145313451 is 154313541.

It is a happy number.

145313451 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 145313451 - 2¹ = 145313449 is a prime.

It is a super-2 number, since 2×145313451² = 42231998083058802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145313431) 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, 4320 + ... + 17586.

It is an arithmetic number, because the mean of its divisors is an integer number (17507126).

Almost surely, 2^145313451 is an apocalyptic number.

145313451 is a deficient number, since it is larger than the sum of its proper divisors (64772061).

145313451 is a wasteful number, since it uses less digits than its factorization.

145313451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14490 (or 14487 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 145313451 is about 12054.6028968191. The cubic root of 145313451 is about 525.7370762586.

Adding to 145313451 its reverse (154313541), we get a palindrome (299626992).

The spelling of 145313451 in words is "one hundred forty-five million, three hundred thirteen thousand, four hundred fifty-one".