354148481 has 2 divisors, whose sum is σ = 354148482. Its totient is φ = 354148480.

The previous prime is 354148469. The next prime is 354148489. The reversal of 354148481 is 184841453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328189456 + 25959025 = 18116^2 + 5095^2 .

It is an emirp because it is prime and its reverse (184841453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 354148481 - 2¹⁰ = 354147457 is a prime.

It is a super-2 number, since 2×354148481² = 250842293189214722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (354148489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177074240 + 177074241.

It is an arithmetic number, because the mean of its divisors is an integer number (177074241).

Almost surely, 2^354148481 is an apocalyptic number.

It is an amenable number.

354148481 is a deficient number, since it is larger than the sum of its proper divisors (1).

354148481 is an equidigital number, since it uses as much as digits as its factorization.

354148481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61440, while the sum is 38.

The square root of 354148481 is about 18818.8331466114. The cubic root of 354148481 is about 707.5032857460.

The spelling of 354148481 in words is "three hundred fifty-four million, one hundred forty-eight thousand, four hundred eighty-one".