340415121 has 16 divisors (see below), whose sum is σ = 464546880. Its totient is φ = 221675520.

The previous prime is 340415113. The next prime is 340415129. The reversal of 340415121 is 121514043.

It is an interprime number because it is at equal distance from previous prime (340415113) and next prime (340415129).

It is not a de Polignac number, because 340415121 - 2³ = 340415113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (340415129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14481 + ... + 29841.

It is an arithmetic number, because the mean of its divisors is an integer number (29034180).

Almost surely, 2^340415121 is an apocalyptic number.

It is an amenable number.

340415121 is a deficient number, since it is larger than the sum of its proper divisors (124131759).

340415121 is a wasteful number, since it uses less digits than its factorization.

340415121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15536.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 340415121 is about 18450.3420293500. The cubic root of 340415121 is about 698.2371431178.

Adding to 340415121 its reverse (121514043), we get a palindrome (461929164).

The spelling of 340415121 in words is "three hundred forty million, four hundred fifteen thousand, one hundred twenty-one".