145430938 has 4 divisors (see below), whose sum is σ = 218146410. Its totient is φ = 72715468.

The previous prime is 145430927. The next prime is 145430939. The reversal of 145430938 is 839034541.

145430938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 118004769 + 27426169 = 10863^2 + 5237^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145430897 and 145430906.

It is not an unprimeable number, because it can be changed into a prime (145430939) 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 as a sum of consecutive naturals, namely, 36357733 + ... + 36357736.

Almost surely, 2^145430938 is an apocalyptic number.

145430938 is a deficient number, since it is larger than the sum of its proper divisors (72715472).

145430938 is an equidigital number, since it uses as much as digits as its factorization.

145430938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72715471.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 145430938 is about 12059.4750300334. The cubic root of 145430938 is about 525.8787255290.

The spelling of 145430938 in words is "one hundred forty-five million, four hundred thirty thousand, nine hundred thirty-eight".