145534736 has 20 divisors (see below), whose sum is σ = 282203292. Its totient is φ = 72708096.

The previous prime is 145534733. The next prime is 145534751. The reversal of 145534736 is 637435541.

It can be written as a sum of positive squares in 2 ways, for example, as 79210000 + 66324736 = 8900^2 + 8144^2 .

It is a super-3 number, since 3×145534736³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145534736.

It is not an unprimeable number, because it can be changed into a prime (145534733) 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, 21920 + ... + 27776.

Almost surely, 2^145534736 is an apocalyptic number.

145534736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145534736 is a deficient number, since it is larger than the sum of its proper divisors (136668556).

145534736 is a wasteful number, since it uses less digits than its factorization.

145534736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7418 (or 7412 counting only the distinct ones).

The product of its digits is 151200, while the sum is 38.

The square root of 145534736 is about 12063.7778494135. Note that the first 3 decimals coincide. The cubic root of 145534736 is about 526.0038070729.

The spelling of 145534736 in words is "one hundred forty-five million, five hundred thirty-four thousand, seven hundred thirty-six".