145434773 has 16 divisors (see below), whose sum is σ = 165998592. Its totient is φ = 126126000.

The previous prime is 145434743. The next prime is 145434781. The reversal of 145434773 is 377434541.

It is a happy number.

It is not a de Polignac number, because 145434773 - 2²⁰ = 144386197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145434743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159188 + ... + 160098.

It is an arithmetic number, because the mean of its divisors is an integer number (10374912).

Almost surely, 2^145434773 is an apocalyptic number.

It is an amenable number.

145434773 is a deficient number, since it is larger than the sum of its proper divisors (20563819).

145434773 is a wasteful number, since it uses less digits than its factorization.

145434773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576.

The product of its digits is 141120, while the sum is 38.

The square root of 145434773 is about 12059.6340325899. The cubic root of 145434773 is about 525.8833479457.

The spelling of 145434773 in words is "one hundred forty-five million, four hundred thirty-four thousand, seven hundred seventy-three".