260121345 has 16 divisors (see below), whose sum is σ = 454030272. Its totient is φ = 126119360.

The previous prime is 260121331. The next prime is 260121353. The reversal of 260121345 is 543121062.

It is not a de Polignac number, because 260121345 - 2⁵ = 260121313 is a prime.

It is a super-2 number, since 2×260121345² = 135326228249218050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788082 + ... + 788411.

It is an arithmetic number, because the mean of its divisors is an integer number (28376892).

Almost surely, 2^260121345 is an apocalyptic number.

It is an amenable number.

260121345 is a deficient number, since it is larger than the sum of its proper divisors (193908927).

260121345 is a wasteful number, since it uses less digits than its factorization.

260121345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576512.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 260121345 is about 16128.2778063871. The cubic root of 260121345 is about 638.3497073896.

The spelling of 260121345 in words is "two hundred sixty million, one hundred twenty-one thousand, three hundred forty-five".