340999961 has 2 divisors, whose sum is σ = 340999962. Its totient is φ = 340999960.

The previous prime is 340999949. The next prime is 341000021. The reversal of 340999961 is 169999043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260628736 + 80371225 = 16144^2 + 8965^2 .

It is a cyclic number.

It is not a de Polignac number, because 340999961 - 2²² = 336805657 is a prime.

It is not a weakly prime, because it can be changed into another prime (340999921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170499980 + 170499981.

It is an arithmetic number, because the mean of its divisors is an integer number (170499981).

Almost surely, 2^340999961 is an apocalyptic number.

It is an amenable number.

340999961 is a deficient number, since it is larger than the sum of its proper divisors (1).

340999961 is an equidigital number, since it uses as much as digits as its factorization.

340999961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 340999961 is about 18466.1842566352. The cubic root of 340999961 is about 698.6367761476.

The spelling of 340999961 in words is "three hundred forty million, nine hundred ninety-nine thousand, nine hundred sixty-one".