42145025151 has 4 divisors (see below), whose sum is σ = 56193366872. Its totient is φ = 28096683432.

The previous prime is 42145025147. The next prime is 42145025191. The reversal of 42145025151 is 15152054124.

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

It is not a de Polignac number, because 42145025151 - 2² = 42145025147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42145025191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7024170856 + ... + 7024170861.

It is an arithmetic number, because the mean of its divisors is an integer number (14048341718).

Almost surely, 2^42145025151 is an apocalyptic number.

42145025151 is a deficient number, since it is larger than the sum of its proper divisors (14048341721).

42145025151 is a wasteful number, since it uses less digits than its factorization.

42145025151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14048341720.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 42145025151 its reverse (15152054124), we get a palindrome (57297079275).

The spelling of 42145025151 in words is "forty-two billion, one hundred forty-five million, twenty-five thousand, one hundred fifty-one".