145074057971 has 4 divisors (see below), whose sum is σ = 145074819744. Its totient is φ = 145073296200.

The previous prime is 145074057929. The next prime is 145074057979. The reversal of 145074057971 is 179750470541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 145074057971 - 2¹⁰ = 145074056947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145074057979) 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, 190001 + ... + 571181.

It is an arithmetic number, because the mean of its divisors is an integer number (36268704936).

Almost surely, 2^145074057971 is an apocalyptic number.

145074057971 is a deficient number, since it is larger than the sum of its proper divisors (761773).

145074057971 is an equidigital number, since it uses as much as digits as its factorization.

145074057971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761772.

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 145074057971 in words is "one hundred forty-five billion, seventy-four million, fifty-seven thousand, nine hundred seventy-one".