3145552521 has 8 divisors (see below), whose sum is σ = 4307423424. Its totient is φ = 2040358320.

The previous prime is 3145552499. The next prime is 3145552537. The reversal of 3145552521 is 1252555413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3145552521 - 2⁶ = 3145552457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3145552561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14169045 + ... + 14169266.

It is an arithmetic number, because the mean of its divisors is an integer number (538427928).

Almost surely, 2^3145552521 is an apocalyptic number.

It is an amenable number.

3145552521 is a deficient number, since it is larger than the sum of its proper divisors (1161870903).

3145552521 is a wasteful number, since it uses less digits than its factorization.

3145552521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28338351.

The product of its digits is 30000, while the sum is 33.

The square root of 3145552521 is about 56085.2255143902. The cubic root of 3145552521 is about 1465.2069847752.

The spelling of 3145552521 in words is "three billion, one hundred forty-five million, five hundred fifty-two thousand, five hundred twenty-one".