145403244523 has 4 divisors (see below), whose sum is σ = 145404218848. Its totient is φ = 145402270200.

The previous prime is 145403244509. The next prime is 145403244551. The reversal of 145403244523 is 325442304541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 145403244523 - 2¹³ = 145403236331 is a prime.

It is a super-2 number, since 2×145403244523² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145403244823) 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, 211203 + ... + 579148.

It is an arithmetic number, because the mean of its divisors is an integer number (36351054712).

Almost surely, 2^145403244523 is an apocalyptic number.

145403244523 is a deficient number, since it is larger than the sum of its proper divisors (974325).

145403244523 is an equidigital number, since it uses as much as digits as its factorization.

145403244523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974324.

The product of its (nonzero) digits is 230400, while the sum is 37.

The spelling of 145403244523 in words is "one hundred forty-five billion, four hundred three million, two hundred forty-four thousand, five hundred twenty-three".