245130421 has 8 divisors (see below), whose sum is σ = 251211584. Its totient is φ = 239120640.

The previous prime is 245130409. The next prime is 245130451. The reversal of 245130421 is 124031542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245130421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245130392 and 245130401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245130451) 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, 10860 + ... + 24661.

It is an arithmetic number, because the mean of its divisors is an integer number (31401448).

Almost surely, 2^245130421 is an apocalyptic number.

It is an amenable number.

245130421 is a deficient number, since it is larger than the sum of its proper divisors (6081163).

245130421 is a wasteful number, since it uses less digits than its factorization.

245130421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35691.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 245130421 is about 15656.6414342285. The cubic root of 245130421 is about 625.8434870552.

Adding to 245130421 its reverse (124031542), we get a palindrome (369161963).

The spelling of 245130421 in words is "two hundred forty-five million, one hundred thirty thousand, four hundred twenty-one".