2153140247 has 16 divisors (see below), whose sum is σ = 2277918720. Its totient is φ = 2031976800.

The previous prime is 2153140229. The next prime is 2153140261. The reversal of 2153140247 is 7420413512.

It is a cyclic number.

It is not a de Polignac number, because 2153140247 - 2⁸ = 2153139991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153140447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424222 + ... + 1425732.

It is an arithmetic number, because the mean of its divisors is an integer number (142369920).

Almost surely, 2^2153140247 is an apocalyptic number.

2153140247 is a deficient number, since it is larger than the sum of its proper divisors (124778473).

2153140247 is a wasteful number, since it uses less digits than its factorization.

2153140247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2153140247 is about 46401.9422761591. The cubic root of 2153140247 is about 1291.2909471229.

Adding to 2153140247 its reverse (7420413512), we get a palindrome (9573553759).

The spelling of 2153140247 in words is "two billion, one hundred fifty-three million, one hundred forty thousand, two hundred forty-seven".