2042452145 has 8 divisors (see below), whose sum is σ = 2461646760. Its totient is φ = 1626825600.

The previous prime is 2042452121. The next prime is 2042452169. The reversal of 2042452145 is 5412542402.

It is an interprime number because it is at equal distance from previous prime (2042452121) and next prime (2042452169).

It can be written as a sum of positive squares in 4 ways, for example, as 519657616 + 1522794529 = 22796^2 + 39023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2042452145 - 2¹² = 2042448049 is a prime.

It is a super-2 number, since 2×2042452145² = 8343221529230202050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890756 + ... + 893045.

It is an arithmetic number, because the mean of its divisors is an integer number (307705845).

Almost surely, 2^2042452145 is an apocalyptic number.

It is an amenable number.

2042452145 is a deficient number, since it is larger than the sum of its proper divisors (419194615).

2042452145 is a wasteful number, since it uses less digits than its factorization.

2042452145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784035.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2042452145 is about 45193.4967113632. The cubic root of 2042452145 is about 1268.7731026393.

Adding to 2042452145 its reverse (5412542402), we get a palindrome (7454994547).

The spelling of 2042452145 in words is "two billion, forty-two million, four hundred fifty-two thousand, one hundred forty-five".