2112153135 has 32 divisors (see below), whose sum is σ = 3531064320. Its totient is φ = 1076072448.
The previous prime is 2112153061. The next prime is 2112153137. The reversal of 2112153135 is 5313512112.
It is not a de Polignac number, because 2112153135 - 223 = 2103764527 is a prime.
It is a super-2 number, since 2×21121531352 = 8922381731380656450, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2112153137) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285807 + ... + 293103.
It is an arithmetic number, because the mean of its divisors is an integer number (110345760).
Almost surely, 22112153135 is an apocalyptic number.
2112153135 is a deficient number, since it is larger than the sum of its proper divisors (1418911185).
2112153135 is a wasteful number, since it uses less digits than its factorization.
2112153135 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8167.
The product of its digits is 900, while the sum is 24.
The square root of 2112153135 is about 45958.1672284698. The cubic root of 2112153135 is about 1283.0447404515.
Adding to 2112153135 its reverse (5313512112), we get a palindrome (7425665247).
The spelling of 2112153135 in words is "two billion, one hundred twelve million, one hundred fifty-three thousand, one hundred thirty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •