146121163971 has 4 divisors (see below), whose sum is σ = 194828218632. Its totient is φ = 97414109312.

The previous prime is 146121163961. The next prime is 146121163987. The reversal of 146121163971 is 179361121641.

It is a happy number.

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 146121163971 - 2¹⁷ = 146121032899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146121163961) 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, 24353527326 + ... + 24353527331.

It is an arithmetic number, because the mean of its divisors is an integer number (48707054658).

Almost surely, 2^146121163971 is an apocalyptic number.

146121163971 is a deficient number, since it is larger than the sum of its proper divisors (48707054661).

146121163971 is an equidigital number, since it uses as much as digits as its factorization.

146121163971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48707054660.

The product of its digits is 54432, while the sum is 42.

The spelling of 146121163971 in words is "one hundred forty-six billion, one hundred twenty-one million, one hundred sixty-three thousand, nine hundred seventy-one".