245241291 has 24 divisors (see below), whose sum is σ = 338850624. Its totient is φ = 157762080.

The previous prime is 245241287. The next prime is 245241323. The reversal of 245241291 is 192142542.

It is not a de Polignac number, because 245241291 - 2² = 245241287 is a prime.

It is a super-2 number, since 2×245241291² = 120286581622693362, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (245241791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 866436 + ... + 866718.

It is an arithmetic number, because the mean of its divisors is an integer number (14118776).

Almost surely, 2^245241291 is an apocalyptic number.

245241291 is a deficient number, since it is larger than the sum of its proper divisors (93609333).

245241291 is a wasteful number, since it uses less digits than its factorization.

245241291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 534 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 245241291 is about 15660.1817039267. The cubic root of 245241291 is about 625.9378270515.

The spelling of 245241291 in words is "two hundred forty-five million, two hundred forty-one thousand, two hundred ninety-one".