145736 has 8 divisors (see below), whose sum is σ = 273270. Its totient is φ = 72864.

The previous prime is 145723. The next prime is 145753. The reversal of 145736 is 637541.

It can be written as a sum of positive squares in only one way, i.e., 136900 + 8836 = 370^2 + 94^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 1 + 4⁸ + 7² + 5⁷ + 3⁶ + 6⁴ .

It is an unprimeable number.

145736 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9101 + ... + 9116.

2¹⁴⁵⁷³⁶ is an apocalyptic number.

It is an amenable number.

145736 is a deficient number, since it is larger than the sum of its proper divisors (127534).

145736 is a wasteful number, since it uses less digits than its factorization.

145736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18223 (or 18219 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 145736 is about 381.7538473938. The cubic root of 145736 is about 52.6246170441.

The spelling of 145736 in words is "one hundred forty-five thousand, seven hundred thirty-six".