145510073 has 4 divisors (see below), whose sum is σ = 148606080. Its totient is φ = 142414068.

The previous prime is 145510067. The next prime is 145510091. The reversal of 145510073 is 370015541.

145510073 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.

It is a cyclic number.

It is not a de Polignac number, because 145510073 - 2⁶ = 145510009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145510033) 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, 1547933 + ... + 1548026.

It is an arithmetic number, because the mean of its divisors is an integer number (37151520).

Almost surely, 2^145510073 is an apocalyptic number.

It is an amenable number.

145510073 is a deficient number, since it is larger than the sum of its proper divisors (3096007).

145510073 is an equidigital number, since it uses as much as digits as its factorization.

145510073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096006.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 145510073 is about 12062.7556138720. The cubic root of 145510073 is about 525.9740923690.

The spelling of 145510073 in words is "one hundred forty-five million, five hundred ten thousand, seventy-three".