145529194 has 8 divisors (see below), whose sum is σ = 219759300. Its totient is φ = 72276096.

The previous prime is 145529107. The next prime is 145529201. The reversal of 145529194 is 491925541.

It can be written as a sum of positive squares in 2 ways, for example, as 145515969 + 13225 = 12063^2 + 115^2 .

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

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, 243879 + ... + 244474.

Almost surely, 2^145529194 is an apocalyptic number.

145529194 is a deficient number, since it is larger than the sum of its proper divisors (74230106).

145529194 is a wasteful number, since it uses less digits than its factorization.

145529194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488504.

The product of its digits is 64800, while the sum is 40.

The square root of 145529194 is about 12063.5481513525. The cubic root of 145529194 is about 525.9971302016.

The spelling of 145529194 in words is "one hundred forty-five million, five hundred twenty-nine thousand, one hundred ninety-four".