2431020145 has 16 divisors (see below), whose sum is σ = 3092538960. Its totient is φ = 1828214784.

The previous prime is 2431020143. The next prime is 2431020173. The reversal of 2431020145 is 5410201342.

It can be written as a sum of positive squares in 8 ways, for example, as 44502241 + 2386517904 = 6671^2 + 48852^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431020145 - 2¹ = 2431020143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2431020143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55741 + ... + 89269.

It is an arithmetic number, because the mean of its divisors is an integer number (193283685).

Almost surely, 2^2431020145 is an apocalyptic number.

It is an amenable number.

2431020145 is a deficient number, since it is larger than the sum of its proper divisors (661518815).

2431020145 is a wasteful number, since it uses less digits than its factorization.

2431020145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34404.

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

The square root of 2431020145 is about 49305.3764309735. The cubic root of 2431020145 is about 1344.6095327344.

Adding to 2431020145 its reverse (5410201342), we get a palindrome (7841221487).

The spelling of 2431020145 in words is "two billion, four hundred thirty-one million, twenty thousand, one hundred forty-five".