148147391 has 8 divisors (see below), whose sum is σ = 173441184. Its totient is φ = 123886080.

The previous prime is 148147369. The next prime is 148147409. The reversal of 148147391 is 193741841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 148147391 - 2¹⁴ = 148131007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148147331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257810 + ... + 258383.

It is an arithmetic number, because the mean of its divisors is an integer number (21680148).

Almost surely, 2^148147391 is an apocalyptic number.

148147391 is a deficient number, since it is larger than the sum of its proper divisors (25293793).

148147391 is an equidigital number, since it uses as much as digits as its factorization.

148147391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516241.

The product of its digits is 24192, while the sum is 38.

The square root of 148147391 is about 12171.5812859299. The cubic root of 148147391 is about 529.1327825645.

The spelling of 148147391 in words is "one hundred forty-eight million, one hundred forty-seven thousand, three hundred ninety-one".