341545021 has 4 divisors (see below), whose sum is σ = 341617372. Its totient is φ = 341472672.

The previous prime is 341544997. The next prime is 341545049. The reversal of 341545021 is 120545143.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120545143 = 31 ⋅3888553.

It can be written as a sum of positive squares in 2 ways, for example, as 202635225 + 138909796 = 14235^2 + 11786^2 .

It is a cyclic number.

It is not a de Polignac number, because 341545021 - 2⁵ = 341544989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (341543021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28560 + ... + 38713.

It is an arithmetic number, because the mean of its divisors is an integer number (85404343).

Almost surely, 2^341545021 is an apocalyptic number.

It is an amenable number.

341545021 is a deficient number, since it is larger than the sum of its proper divisors (72351).

341545021 is an equidigital number, since it uses as much as digits as its factorization.

341545021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72350.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 341545021 is about 18480.9366916290. The cubic root of 341545021 is about 699.0088155346.

The spelling of 341545021 in words is "three hundred forty-one million, five hundred forty-five thousand, twenty-one".