346440137 has 2 divisors, whose sum is σ = 346440138. Its totient is φ = 346440136.

The previous prime is 346440113. The next prime is 346440163. The reversal of 346440137 is 731044643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342213001 + 4227136 = 18499^2 + 2056^2 .

It is a cyclic number.

It is not a de Polignac number, because 346440137 - 2⁸ = 346439881 is a prime.

It is not a weakly prime, because it can be changed into another prime (346440187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173220068 + 173220069.

It is an arithmetic number, because the mean of its divisors is an integer number (173220069).

Almost surely, 2^346440137 is an apocalyptic number.

It is an amenable number.

346440137 is a deficient number, since it is larger than the sum of its proper divisors (1).

346440137 is an equidigital number, since it uses as much as digits as its factorization.

346440137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 346440137 is about 18612.9024335271. The cubic root of 346440137 is about 702.3324487380.

The spelling of 346440137 in words is "three hundred forty-six million, four hundred forty thousand, one hundred thirty-seven".