145511738 has 8 divisors (see below), whose sum is σ = 231106932. Its totient is φ = 68476096.

The previous prime is 145511693. The next prime is 145511741. The reversal of 145511738 is 837115541.

145511738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 141443449 + 4068289 = 11893^2 + 2017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 145511698 and 145511707.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2139845 + ... + 2139912.

Almost surely, 2^145511738 is an apocalyptic number.

145511738 is a deficient number, since it is larger than the sum of its proper divisors (85595194).

145511738 is a wasteful number, since it uses less digits than its factorization.

145511738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279776.

The product of its digits is 16800, while the sum is 35.

The square root of 145511738 is about 12062.8246277561. The cubic root of 145511738 is about 525.9760985154.

The spelling of 145511738 in words is "one hundred forty-five million, five hundred eleven thousand, seven hundred thirty-eight".