145221642514 has 8 divisors (see below), whose sum is σ = 234588807180. Its totient is φ = 67025373456.

The previous prime is 145221642473. The next prime is 145221642541. The reversal of 145221642514 is 415246122541.

It can be written as a sum of positive squares in 2 ways, for example, as 144767313289 + 454329225 = 380483^2 + 21315^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2792723869 + ... + 2792723920.

Almost surely, 2^145221642514 is an apocalyptic number.

145221642514 is a deficient number, since it is larger than the sum of its proper divisors (89367164666).

145221642514 is a wasteful number, since it uses less digits than its factorization.

145221642514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585447804.

The product of its digits is 76800, while the sum is 37.

The spelling of 145221642514 in words is "one hundred forty-five billion, two hundred twenty-one million, six hundred forty-two thousand, five hundred fourteen".