145837738 has 16 divisors (see below), whose sum is σ = 226323720. Its totient is φ = 70432000.

The previous prime is 145837717. The next prime is 145837751. The reversal of 145837738 is 837738541.

145837738 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 4 ways, for example, as 136492489 + 9345249 = 11683^2 + 3057^2 .

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 7 ways as a sum of consecutive naturals, for example, 523 + ... + 17086.

Almost surely, 2^145837738 is an apocalyptic number.

145837738 is a deficient number, since it is larger than the sum of its proper divisors (80485982).

145837738 is a wasteful number, since it uses less digits than its factorization.

145837738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17753.

The product of its digits is 564480, while the sum is 46.

The square root of 145837738 is about 12076.3296576402. The cubic root of 145837738 is about 526.3685990768.

The spelling of 145837738 in words is "one hundred forty-five million, eight hundred thirty-seven thousand, seven hundred thirty-eight".