245495121 has 16 divisors (see below), whose sum is σ = 339024000. Its totient is φ = 157828608.

The previous prime is 245495119. The next prime is 245495137. The reversal of 245495121 is 121594542.

It is not a de Polignac number, because 245495121 - 2¹ = 245495119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245495221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120705 + ... + 122721.

It is an arithmetic number, because the mean of its divisors is an integer number (21189000).

Almost surely, 2^245495121 is an apocalyptic number.

It is an amenable number.

245495121 is a deficient number, since it is larger than the sum of its proper divisors (93528879).

245495121 is a wasteful number, since it uses less digits than its factorization.

245495121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448.

The product of its digits is 14400, while the sum is 33.

The square root of 245495121 is about 15668.2839200724. The cubic root of 245495121 is about 626.1537056176.

The spelling of 245495121 in words is "two hundred forty-five million, four hundred ninety-five thousand, one hundred twenty-one".