145313401 has 4 divisors (see below), whose sum is σ = 147776400. Its totient is φ = 142850404.

The previous prime is 145313353. The next prime is 145313417. The reversal of 145313401 is 104313541.

145313401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104313541 = 4261 ⋅24481.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145313401 is a prime.

It is a super-2 number, since 2×145313401² = 42231969020373602, which contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 1231411 + ... + 1231528.

It is an arithmetic number, because the mean of its divisors is an integer number (36944100).

Almost surely, 2^145313401 is an apocalyptic number.

It is an amenable number.

145313401 is a deficient number, since it is larger than the sum of its proper divisors (2462999).

145313401 is an equidigital number, since it uses as much as digits as its factorization.

145313401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462998.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 145313401 is about 12054.6008229223. The cubic root of 145313401 is about 525.7370159594.

Adding to 145313401 its reverse (104313541), we get a palindrome (249626942).

The spelling of 145313401 in words is "one hundred forty-five million, three hundred thirteen thousand, four hundred one".