354455261 has 4 divisors (see below), whose sum is σ = 354493692. Its totient is φ = 354416832.

The previous prime is 354455251. The next prime is 354455267. The reversal of 354455261 is 162554453.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 162554453 = 6703 ⋅24251.

It can be written as a sum of positive squares in 2 ways, for example, as 162078361 + 192376900 = 12731^2 + 13870^2 .

It is a cyclic number.

It is not a de Polignac number, because 354455261 - 2¹⁰ = 354454237 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 (354455267) 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, 3845 + ... + 26901.

It is an arithmetic number, because the mean of its divisors is an integer number (88623423).

Almost surely, 2^354455261 is an apocalyptic number.

It is an amenable number.

354455261 is a deficient number, since it is larger than the sum of its proper divisors (38431).

354455261 is a wasteful number, since it uses less digits than its factorization.

354455261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38430.

The product of its digits is 72000, while the sum is 35.

The square root of 354455261 is about 18826.9822595125. The cubic root of 354455261 is about 707.7075176124.

The spelling of 354455261 in words is "three hundred fifty-four million, four hundred fifty-five thousand, two hundred sixty-one".