345740121 has 12 divisors (see below), whose sum is σ = 502997040. Its totient is φ = 228834360.

The previous prime is 345740089. The next prime is 345740137. The reversal of 345740121 is 121047543.

It is not a de Polignac number, because 345740121 - 2⁵ = 345740089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345740141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136935 + ... + 139436.

It is an arithmetic number, because the mean of its divisors is an integer number (41916420).

Almost surely, 2^345740121 is an apocalyptic number.

It is an amenable number.

345740121 is a deficient number, since it is larger than the sum of its proper divisors (157256919).

345740121 is a wasteful number, since it uses less digits than its factorization.

345740121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276516 (or 276513 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 345740121 is about 18594.0883347369. The cubic root of 345740121 is about 701.8590860900.

Adding to 345740121 its reverse (121047543), we get a palindrome (466787664).

The spelling of 345740121 in words is "three hundred forty-five million, seven hundred forty thousand, one hundred twenty-one".