148105291 has 4 divisors (see below), whose sum is σ = 153212400. Its totient is φ = 142998184.

The previous prime is 148105273. The next prime is 148105313. The reversal of 148105291 is 192501841.

It is a happy number.

148105291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148105291 - 2¹⁷ = 147974219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148105231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553511 + ... + 2553568.

It is an arithmetic number, because the mean of its divisors is an integer number (38303100).

Almost surely, 2^148105291 is an apocalyptic number.

148105291 is a deficient number, since it is larger than the sum of its proper divisors (5107109).

148105291 is an equidigital number, since it uses as much as digits as its factorization.

148105291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107108.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 148105291 is about 12169.8517246514. The cubic root of 148105291 is about 529.0826554569.

The spelling of 148105291 in words is "one hundred forty-eight million, one hundred five thousand, two hundred ninety-one".