148581247 has 2 divisors, whose sum is σ = 148581248. Its totient is φ = 148581246.

The previous prime is 148581227. The next prime is 148581259. The reversal of 148581247 is 742185841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148581247 - 2⁷ = 148581119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148581227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74290623 + 74290624.

It is an arithmetic number, because the mean of its divisors is an integer number (74290624).

Almost surely, 2^148581247 is an apocalyptic number.

148581247 is a deficient number, since it is larger than the sum of its proper divisors (1).

148581247 is an equidigital number, since it uses as much as digits as its factorization.

148581247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71680, while the sum is 40.

The square root of 148581247 is about 12189.3907558992. The cubic root of 148581247 is about 529.6488085202.

The spelling of 148581247 in words is "one hundred forty-eight million, five hundred eighty-one thousand, two hundred forty-seven".