3146142520521 has 96 divisors (see below), whose sum is σ = 6266518771968. Its totient is φ = 1467865566720.

The previous prime is 3146142520517. The next prime is 3146142520553. The reversal of 3146142520521 is 1250252416413.

3146142520521 is a `hidden beast` number, since 3 + 1 + 4 + 6 + 1 + 425 + 205 + 21 = 666.

It is not a de Polignac number, because 3146142520521 - 2² = 3146142520517 is a prime.

It is a super-2 number, since 2×3146142520521² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3146142520511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4385886 + ... + 5052551.

It is an arithmetic number, because the mean of its divisors is an integer number (65276237208).

Almost surely, 2^{3146142520521} is an apocalyptic number.

It is an amenable number.

3146142520521 is a deficient number, since it is larger than the sum of its proper divisors (3120376251447).

3146142520521 is a wasteful number, since it uses less digits than its factorization.

3146142520521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9438511 (or 9438508 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 3146142520521 its reverse (1250252416413), we get a palindrome (4396394936934).

It can be divided in two parts, 3146142 and 520521, that added together give a palindrome (3666663).

The spelling of 3146142520521 in words is "three trillion, one hundred forty-six billion, one hundred forty-two million, five hundred twenty thousand, five hundred twenty-one".