146985365971 has 4 divisors (see below), whose sum is σ = 148058251992. Its totient is φ = 145912479952.

The previous prime is 146985365959. The next prime is 146985365981. The reversal of 146985365971 is 179563589641.

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

It is a cyclic number.

It is not a de Polignac number, because 146985365971 - 2¹⁷ = 146985234899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146985365921) 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, 536442805 + ... + 536443078.

It is an arithmetic number, because the mean of its divisors is an integer number (37014562998).

Almost surely, 2^146985365971 is an apocalyptic number.

146985365971 is a deficient number, since it is larger than the sum of its proper divisors (1072886021).

146985365971 is a wasteful number, since it uses less digits than its factorization.

146985365971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072886020.

The product of its digits is 48988800, while the sum is 64.

The spelling of 146985365971 in words is "one hundred forty-six billion, nine hundred eighty-five million, three hundred sixty-five thousand, nine hundred seventy-one".