3158214521 has 32 divisors (see below), whose sum is σ = 4125081600. Its totient is φ = 2345878080.

The previous prime is 3158214517. The next prime is 3158214541. The reversal of 3158214521 is 1254128513.

It is not a de Polignac number, because 3158214521 - 2² = 3158214517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3158214511) 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 31 ways as a sum of consecutive naturals, for example, 167456 + ... + 185358.

It is an arithmetic number, because the mean of its divisors is an integer number (128908800).

Almost surely, 2^3158214521 is an apocalyptic number.

It is an amenable number.

3158214521 is a deficient number, since it is larger than the sum of its proper divisors (966867079).

3158214521 is a wasteful number, since it uses less digits than its factorization.

3158214521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18029.

The product of its digits is 9600, while the sum is 32.

The square root of 3158214521 is about 56197.9939232710. The cubic root of 3158214521 is about 1467.1703508050.

The spelling of 3158214521 in words is "three billion, one hundred fifty-eight million, two hundred fourteen thousand, five hundred twenty-one".