145053957971 has 16 divisors (see below), whose sum is σ = 165468560544. Its totient is φ = 125968172544.

The previous prime is 145053957967. The next prime is 145053957977. The reversal of 145053957971 is 179759350541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145053957971 - 2² = 145053957967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145053957977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412181 + ... + 678233.

It is an arithmetic number, because the mean of its divisors is an integer number (10341785034).

Almost surely, 2^145053957971 is an apocalyptic number.

145053957971 is a deficient number, since it is larger than the sum of its proper divisors (20414602573).

145053957971 is a wasteful number, since it uses less digits than its factorization.

145053957971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268550.

The product of its (nonzero) digits is 5953500, while the sum is 56.

The spelling of 145053957971 in words is "one hundred forty-five billion, fifty-three million, nine hundred fifty-seven thousand, nine hundred seventy-one".