245294991 has 12 divisors (see below), whose sum is σ = 354692520. Its totient is φ = 163355760.

The previous prime is 245294981. The next prime is 245295041. The reversal of 245294991 is 199492542.

It is not a de Polignac number, because 245294991 - 2¹⁵ = 245262223 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245294981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5296 + ... + 22773.

It is an arithmetic number, because the mean of its divisors is an integer number (29557710).

Almost surely, 2^245294991 is an apocalyptic number.

245294991 is a deficient number, since it is larger than the sum of its proper divisors (109397529).

245294991 is a wasteful number, since it uses less digits than its factorization.

245294991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29046 (or 29043 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 245294991 is about 15661.8961495727. The cubic root of 245294991 is about 625.9835105062.

The spelling of 245294991 in words is "two hundred forty-five million, two hundred ninety-four thousand, nine hundred ninety-one".