145913506 has 16 divisors (see below), whose sum is σ = 224574840. Its totient is φ = 71061120.

The previous prime is 145913501. The next prime is 145913507. The reversal of 145913506 is 605319541.

It can be written as a sum of positive squares in 4 ways, for example, as 143161225 + 2752281 = 11965^2 + 1659^2 .

It is not an unprimeable number, because it can be changed into a prime (145913501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70900 + ... + 72928.

Almost surely, 2^145913506 is an apocalyptic number.

145913506 is a deficient number, since it is larger than the sum of its proper divisors (78661334).

145913506 is a wasteful number, since it uses less digits than its factorization.

145913506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 145913506 is about 12079.4662961573. The cubic root of 145913506 is about 526.4597391613.

The spelling of 145913506 in words is "one hundred forty-five million, nine hundred thirteen thousand, five hundred six".