3215149455 has 24 divisors (see below), whose sum is σ = 5984116272. Its totient is φ = 1469782272.

The previous prime is 3215149451. The next prime is 3215149471. The reversal of 3215149455 is 5549415123.

It is a happy number.

It is not a de Polignac number, because 3215149455 - 2² = 3215149451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215149451) 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 23 ways as a sum of consecutive naturals, for example, 2186442 + ... + 2187911.

It is an arithmetic number, because the mean of its divisors is an integer number (249338178).

Almost surely, 2^3215149455 is an apocalyptic number.

3215149455 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3215149455 is a deficient number, since it is larger than the sum of its proper divisors (2768966817).

3215149455 is a wasteful number, since it uses less digits than its factorization.

3215149455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374375 (or 4374368 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 3215149455 is about 56702.2879168028. The cubic root of 3215149455 is about 1475.9344005664.

The spelling of 3215149455 in words is "three billion, two hundred fifteen million, one hundred forty-nine thousand, four hundred fifty-five".