4245252146 has 4 divisors (see below), whose sum is σ = 6367878222. Its totient is φ = 2122626072.

The previous prime is 4245252131. The next prime is 4245252149. The reversal of 4245252146 is 6412525424.

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., 3210922225 + 1034329921 = 56665^2 + 32161^2 .

It is not an unprimeable number, because it can be changed into a prime (4245252149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061313035 + ... + 1061313038.

Almost surely, 2^4245252146 is an apocalyptic number.

4245252146 is a deficient number, since it is larger than the sum of its proper divisors (2122626076).

4245252146 is a wasteful number, since it uses less digits than its factorization.

4245252146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122626075.

The product of its digits is 76800, while the sum is 35.

The square root of 4245252146 is about 65155.5994984314. The cubic root of 4245252146 is about 1619.2024914203.

The spelling of 4245252146 in words is "four billion, two hundred forty-five million, two hundred fifty-two thousand, one hundred forty-six".