146775025081 has 4 divisors (see below), whose sum is σ = 146776382464. Its totient is φ = 146773667700.

The previous prime is 146775025073. The next prime is 146775025091. The reversal of 146775025081 is 180520577641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 146775025081 - 2³ = 146775025073 is a prime.

It is a super-2 number, since 2×146775025081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146775025091) 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, 500985 + ... + 737926.

It is an arithmetic number, because the mean of its divisors is an integer number (36694095616).

Almost surely, 2^146775025081 is an apocalyptic number.

It is an amenable number.

146775025081 is a deficient number, since it is larger than the sum of its proper divisors (1357383).

146775025081 is a wasteful number, since it uses less digits than its factorization.

146775025081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357382.

The product of its (nonzero) digits is 470400, while the sum is 46.

The spelling of 146775025081 in words is "one hundred forty-six billion, seven hundred seventy-five million, twenty-five thousand, eighty-one".