522100145 has 48 divisors (see below), whose sum is σ = 780580800. Its totient is φ = 333244800.

The previous prime is 522100121. The next prime is 522100157. The reversal of 522100145 is 541001225.

522100145 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 522100145 - 2¹² = 522096049 is a prime.

It is a super-2 number, since 2×522100145² = 545177122818042050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 273695 + ... + 275595.

It is an arithmetic number, because the mean of its divisors is an integer number (16262100).

Almost surely, 2^522100145 is an apocalyptic number.

It is an amenable number.

522100145 is a deficient number, since it is larger than the sum of its proper divisors (258480655).

522100145 is a wasteful number, since it uses less digits than its factorization.

522100145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 1991 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 522100145 is about 22849.5108262737. The cubic root of 522100145 is about 805.2262753953.

The spelling of 522100145 in words is "five hundred twenty-two million, one hundred thousand, one hundred forty-five".