74142025145 has 4 divisors (see below), whose sum is σ = 88970430180. Its totient is φ = 59313620112.

The previous prime is 74142025121. The next prime is 74142025147. The reversal of 74142025145 is 54152024147.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35192634409 + 38949390736 = 187597^2 + 197356^2 .

It is a cyclic number.

It is not a de Polignac number, because 74142025145 - 2⁸ = 74142024889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74142025147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7414202510 + ... + 7414202519.

It is an arithmetic number, because the mean of its divisors is an integer number (22242607545).

Almost surely, 2^74142025145 is an apocalyptic number.

It is an amenable number.

74142025145 is a deficient number, since it is larger than the sum of its proper divisors (14828405035).

74142025145 is a wasteful number, since it uses less digits than its factorization.

74142025145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14828405034.

The product of its (nonzero) digits is 44800, while the sum is 35.

The spelling of 74142025145 in words is "seventy-four billion, one hundred forty-two million, twenty-five thousand, one hundred forty-five".