245137047 has 8 divisors (see below), whose sum is σ = 327761280. Its totient is φ = 162968760.

The previous prime is 245137043. The next prime is 245137049. The reversal of 245137047 is 740731542.

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

It is not a de Polignac number, because 245137047 - 2² = 245137043 is a prime.

It is a super-4 number, since 4×245137047⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245136999 and 245137017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245137043) 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, 112729 + ... + 114882.

It is an arithmetic number, because the mean of its divisors is an integer number (40970160).

Almost surely, 2^245137047 is an apocalyptic number.

245137047 is a deficient number, since it is larger than the sum of its proper divisors (82624233).

245137047 is a wasteful number, since it uses less digits than its factorization.

245137047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227973.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 245137047 is about 15656.8530362905. The cubic root of 245137047 is about 625.8491259604.

Adding to 245137047 its reverse (740731542), we get a palindrome (985868589).

The spelling of 245137047 in words is "two hundred forty-five million, one hundred thirty-seven thousand, forty-seven".