245812091 has 8 divisors (see below), whose sum is σ = 290615520. Its totient is φ = 203430528.

The previous prime is 245812087. The next prime is 245812093. The reversal of 245812091 is 190218542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245812091 - 2² = 245812087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245812093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605246 + ... + 605651.

It is an arithmetic number, because the mean of its divisors is an integer number (36326940).

Almost surely, 2^245812091 is an apocalyptic number.

245812091 is a deficient number, since it is larger than the sum of its proper divisors (44803429).

245812091 is a wasteful number, since it uses less digits than its factorization.

245812091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210933.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 245812091 is about 15678.3956768542. The cubic root of 245812091 is about 626.4230749663.

The spelling of 245812091 in words is "two hundred forty-five million, eight hundred twelve thousand, ninety-one".