3215214451 has 4 divisors (see below), whose sum is σ = 3215700400. Its totient is φ = 3214728504.

The previous prime is 3215214449. The next prime is 3215214463. The reversal of 3215214451 is 1544125123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3215214451 - 2¹ = 3215214449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3215214851) 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 3 ways as a sum of consecutive naturals, for example, 232911 + ... + 246328.

It is an arithmetic number, because the mean of its divisors is an integer number (803925100).

Almost surely, 2^3215214451 is an apocalyptic number.

3215214451 is a deficient number, since it is larger than the sum of its proper divisors (485949).

3215214451 is an equidigital number, since it uses as much as digits as its factorization.

3215214451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485948.

The product of its digits is 4800, while the sum is 28.

The square root of 3215214451 is about 56702.8610477461. The cubic root of 3215214451 is about 1475.9443461058.

Adding to 3215214451 its reverse (1544125123), we get a palindrome (4759339574).

The spelling of 3215214451 in words is "three billion, two hundred fifteen million, two hundred fourteen thousand, four hundred fifty-one".