354450749 has 2 divisors, whose sum is σ = 354450750. Its totient is φ = 354450748.

The previous prime is 354450727. The next prime is 354450751. The reversal of 354450749 is 947054453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335805625 + 18645124 = 18325^2 + 4318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354450749 is a prime.

It is a super-2 number, since 2×354450749² = 251270666933322002, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 354450751, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354450709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177225374 + 177225375.

It is an arithmetic number, because the mean of its divisors is an integer number (177225375).

Almost surely, 2^354450749 is an apocalyptic number.

It is an amenable number.

354450749 is a deficient number, since it is larger than the sum of its proper divisors (1).

354450749 is an equidigital number, since it uses as much as digits as its factorization.

354450749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 354450749 is about 18826.8624311116. The cubic root of 354450749 is about 707.7045147042.

The spelling of 354450749 in words is "three hundred fifty-four million, four hundred fifty thousand, seven hundred forty-nine".