148642519 has 2 divisors, whose sum is σ = 148642520. Its totient is φ = 148642518.

The previous prime is 148642517. The next prime is 148642523. The reversal of 148642519 is 915246841.

It is a weak prime.

It is an emirp because it is prime and its reverse (915246841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148642519 - 2¹ = 148642517 is a prime.

It is a super-2 number, since 2×148642519² = 44189196909330722, which contains 22 as substring.

Together with 148642517, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148642517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74321259 + 74321260.

It is an arithmetic number, because the mean of its divisors is an integer number (74321260).

Almost surely, 2^148642519 is an apocalyptic number.

148642519 is a deficient number, since it is larger than the sum of its proper divisors (1).

148642519 is an equidigital number, since it uses as much as digits as its factorization.

148642519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The square root of 148642519 is about 12191.9038300013. The cubic root of 148642519 is about 529.7216041175.

The spelling of 148642519 in words is "one hundred forty-eight million, six hundred forty-two thousand, five hundred nineteen".