2145510511 has 2 divisors, whose sum is σ = 2145510512. Its totient is φ = 2145510510.

The previous prime is 2145510503. The next prime is 2145510559. The reversal of 2145510511 is 1150155412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145510511 - 2³ = 2145510503 is a prime.

It is a super-2 number, since 2×2145510511² = 9206430705622962242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145510581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072755255 + 1072755256.

It is an arithmetic number, because the mean of its divisors is an integer number (1072755256).

Almost surely, 2^2145510511 is an apocalyptic number.

2145510511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145510511 is an equidigital number, since it uses as much as digits as its factorization.

2145510511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 2145510511 is about 46319.6557737641. The cubic root of 2145510511 is about 1289.7638954547.

Adding to 2145510511 its reverse (1150155412), we get a palindrome (3295665923).

It can be divided in two parts, 2145 and 510511, that added together give a square (512656 = 716²).

The spelling of 2145510511 in words is "two billion, one hundred forty-five million, five hundred ten thousand, five hundred eleven".