245870427 has 18 divisors (see below), whose sum is σ = 360777396. Its totient is φ = 148831320.

The previous prime is 245870423. The next prime is 245870453. The reversal of 245870427 is 724078542.

It is not a de Polignac number, because 245870427 - 2² = 245870423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245870423) 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 17 ways as a sum of consecutive naturals, for example, 298338 + ... + 299160.

Almost surely, 2^245870427 is an apocalyptic number.

245870427 is a deficient number, since it is larger than the sum of its proper divisors (114906969).

245870427 is an frugal number, since it uses more digits than its factorization.

245870427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 245870427 is about 15680.2559609210. The cubic root of 245870427 is about 626.4726251816.

It can be divided in two parts, 24 and 5870427, that added together give a triangular number (5870451 = T₃₄₂₆).

The spelling of 245870427 in words is "two hundred forty-five million, eight hundred seventy thousand, four hundred twenty-seven".