354561619 has 2 divisors, whose sum is σ = 354561620. Its totient is φ = 354561618.

The previous prime is 354561577. The next prime is 354561643. The reversal of 354561619 is 916165453.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 354561619 - 2²¹ = 352464467 is a prime.

It is a super-2 number, since 2×354561619² = 251427883335802322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (354561659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177280809 + 177280810.

It is an arithmetic number, because the mean of its divisors is an integer number (177280810).

Almost surely, 2^354561619 is an apocalyptic number.

354561619 is a deficient number, since it is larger than the sum of its proper divisors (1).

354561619 is an equidigital number, since it uses as much as digits as its factorization.

354561619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 354561619 is about 18829.8066639039. The cubic root of 354561619 is about 707.7782955423.

It can be divided in two parts, 35 and 4561619, that added together give a palindrome (4561654).

The spelling of 354561619 in words is "three hundred fifty-four million, five hundred sixty-one thousand, six hundred nineteen".