245635042 has 4 divisors (see below), whose sum is σ = 368452566. Its totient is φ = 122817520.

The previous prime is 245635037. The next prime is 245635043. The reversal of 245635042 is 240536542.

245635042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 158231241 + 87403801 = 12579^2 + 9349^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 245634995 and 245635013.

It is not an unprimeable number, because it can be changed into a prime (245635043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61408759 + ... + 61408762.

Almost surely, 2^245635042 is an apocalyptic number.

245635042 is a deficient number, since it is larger than the sum of its proper divisors (122817524).

245635042 is a wasteful number, since it uses less digits than its factorization.

245635042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122817523.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 245635042 is about 15672.7483869295. The cubic root of 245635042 is about 626.2726426900.

The spelling of 245635042 in words is "two hundred forty-five million, six hundred thirty-five thousand, forty-two".