148272391 has 2 divisors, whose sum is σ = 148272392. Its totient is φ = 148272390.

The previous prime is 148272367. The next prime is 148272401. The reversal of 148272391 is 193272841.

148272391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148272391 - 2¹³ = 148264199 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148272391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148272491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74136195 + 74136196.

It is an arithmetic number, because the mean of its divisors is an integer number (74136196).

Almost surely, 2^148272391 is an apocalyptic number.

148272391 is a deficient number, since it is larger than the sum of its proper divisors (1).

148272391 is an equidigital number, since it uses as much as digits as its factorization.

148272391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 148272391 is about 12176.7151153339. The cubic root of 148272391 is about 529.2815600842.

The spelling of 148272391 in words is "one hundred forty-eight million, two hundred seventy-two thousand, three hundred ninety-one".