145003446520 has 16 divisors (see below), whose sum is σ = 326257754760. Its totient is φ = 58001378592.

The previous prime is 145003446499. The next prime is 145003446529. The reversal of 145003446520 is 25644300541.

It is a super-2 number, since 2×145003446520² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145003446529) 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, 1812543042 + ... + 1812543121.

Almost surely, 2^145003446520 is an apocalyptic number.

145003446520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145003446520 is an abundant number, since it is smaller than the sum of its proper divisors (181254308240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145003446520 is a wasteful number, since it uses less digits than its factorization.

145003446520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625086174 (or 3625086170 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 145003446520 in words is "one hundred forty-five billion, three million, four hundred forty-six thousand, five hundred twenty".