245140202 has 4 divisors (see below), whose sum is σ = 367710306. Its totient is φ = 122570100.

The previous prime is 245140201. The next prime is 245140213. The reversal of 245140202 is 202041542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202041542 = 2 ⋅101020771.

It can be written as a sum of positive squares in only one way, i.e., 244891201 + 249001 = 15649^2 + 499^2 .

It is not an unprimeable number, because it can be changed into a prime (245140201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61285049 + ... + 61285052.

Almost surely, 2^245140202 is an apocalyptic number.

245140202 is a deficient number, since it is larger than the sum of its proper divisors (122570104).

245140202 is a wasteful number, since it uses less digits than its factorization.

245140202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122570103.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 245140202 is about 15656.9537905686. The cubic root of 245140202 is about 625.8518109150.

Adding to 245140202 its reverse (202041542), we get a palindrome (447181744).

The spelling of 245140202 in words is "two hundred forty-five million, one hundred forty thousand, two hundred two".