2070253945 has 4 divisors (see below), whose sum is σ = 2484304740. Its totient is φ = 1656203152.

The previous prime is 2070253937. The next prime is 2070253949. The reversal of 2070253945 is 5493520702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 654387561 + 1415866384 = 25581^2 + 37628^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070253945 - 2³ = 2070253937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2070253949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207025390 + ... + 207025399.

It is an arithmetic number, because the mean of its divisors is an integer number (621076185).

Almost surely, 2^2070253945 is an apocalyptic number.

It is an amenable number.

2070253945 is a deficient number, since it is larger than the sum of its proper divisors (414050795).

2070253945 is an equidigital number, since it uses as much as digits as its factorization.

2070253945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414050794.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 2070253945 is about 45500.0433516277. The cubic root of 2070253945 is about 1274.5040121301.

It can be divided in two parts, 20702 and 53945, that added together give a palindrome (74647).

The spelling of 2070253945 in words is "two billion, seventy million, two hundred fifty-three thousand, nine hundred forty-five".