345544261 has 8 divisors (see below), whose sum is σ = 368328600. Its totient is φ = 323033088.

The previous prime is 345544253. The next prime is 345544273. The reversal of 345544261 is 162445543.

It can be written as a sum of positive squares in 4 ways, for example, as 133841761 + 211702500 = 11569^2 + 14550^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 345544261 - 2³ = 345544253 is a prime.

It is a super-2 number, since 2×345544261² = 238801672620072242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345544211) 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, 65676 + ... + 70741.

It is an arithmetic number, because the mean of its divisors is an integer number (46041075).

Almost surely, 2^345544261 is an apocalyptic number.

It is an amenable number.

345544261 is a deficient number, since it is larger than the sum of its proper divisors (22784339).

345544261 is a wasteful number, since it uses less digits than its factorization.

345544261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136583.

The product of its digits is 57600, while the sum is 34.

The square root of 345544261 is about 18588.8208609368. The cubic root of 345544261 is about 701.7265278684.

The spelling of 345544261 in words is "three hundred forty-five million, five hundred forty-four thousand, two hundred sixty-one".