345552481 has 4 divisors (see below), whose sum is σ = 346184752. Its totient is φ = 344920212.

The previous prime is 345552479. The next prime is 345552491. The reversal of 345552481 is 184255543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184255543 = 89 ⋅2070287.

It is a cyclic number.

It is not a de Polignac number, because 345552481 - 2¹ = 345552479 is a prime.

It is a super-2 number, since 2×345552481² = 238813034250510722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345552481.

It is not an unprimeable number, because it can be changed into a prime (345552401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315315 + ... + 316408.

It is an arithmetic number, because the mean of its divisors is an integer number (86546188).

Almost surely, 2^345552481 is an apocalyptic number.

It is an amenable number.

345552481 is a deficient number, since it is larger than the sum of its proper divisors (632271).

345552481 is an equidigital number, since it uses as much as digits as its factorization.

345552481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632270.

The product of its digits is 96000, while the sum is 37.

The square root of 345552481 is about 18589.0419602517. The cubic root of 345552481 is about 701.7320921786.

It can be divided in two parts, 345 and 552481, that added together give a triangular number (552826 = T₁₀₅₁).

The spelling of 345552481 in words is "three hundred forty-five million, five hundred fifty-two thousand, four hundred eighty-one".