145473734 has 16 divisors (see below), whose sum is σ = 251855136. Its totient is φ = 61728000.

The previous prime is 145473733. The next prime is 145473761. The reversal of 145473734 is 437374541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145473733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50027 + ... + 52854.

It is an arithmetic number, because the mean of its divisors is an integer number (15740946).

Almost surely, 2^145473734 is an apocalyptic number.

145473734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145473734 is a deficient number, since it is larger than the sum of its proper divisors (106381402).

145473734 is a wasteful number, since it uses less digits than its factorization.

145473734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102991.

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

The square root of 145473734 is about 12061.2492719453. The cubic root of 145473734 is about 525.9303039598.

It can be divided in two parts, 14547 and 3734, that added together give a palindrome (18281).

The spelling of 145473734 in words is "one hundred forty-five million, four hundred seventy-three thousand, seven hundred thirty-four".