48140291 has 4 divisors (see below), whose sum is σ = 48154512. Its totient is φ = 48126072.
The previous prime is 48140251. The next prime is 48140297. The reversal of 48140291 is 19204184.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-48140291 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (48140297) 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 3 ways as a sum of consecutive naturals, for example, 1226 + ... + 9888.
It is an arithmetic number, because the mean of its divisors is an integer number (12038628).
Almost surely, 248140291 is an apocalyptic number.
48140291 is a deficient number, since it is larger than the sum of its proper divisors (14221).
48140291 is an equidigital number, since it uses as much as digits as its factorization.
48140291 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14220.
The product of its (nonzero) digits is 2304, while the sum is 29.
The square root of 48140291 is about 6938.3204740052. The cubic root of 48140291 is about 363.7778376053. Note that the first 3 decimals are identical.
The spelling of 48140291 in words is "forty-eight million, one hundred forty thousand, two hundred ninety-one".
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