245351 has 4 divisors (see below), whose sum is σ = 247752. Its totient is φ = 242952.

The previous prime is 245339. The next prime is 245383. The reversal of 245351 is 153542.

245351 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153542 = 2 ⋅76771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245351 is a prime.

It is a super-2 number, since 2×245351² = 120394226402, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 245351 parts by 700 straight cuts.

It is a Duffinian number.

245351 is an undulating number in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040 + ... + 1253.

It is an arithmetic number, because the mean of its divisors is an integer number (61938).

2²⁴⁵³⁵¹ is an apocalyptic number.

245351 is a deficient number, since it is larger than the sum of its proper divisors (2401).

245351 is a wasteful number, since it uses less digits than its factorization.

245351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400.

The product of its digits is 600, while the sum is 20.

The square root of 245351 is about 495.3291834730. The cubic root of 245351 is about 62.6031151161.

Adding to 245351 its reverse (153542), we get a palindrome (398893).

Subtracting from 245351 its reverse (153542), we obtain a square (91809 = 303²).

The spelling of 245351 in words is "two hundred forty-five thousand, three hundred fifty-one".