148135919 has 2 divisors, whose sum is σ = 148135920. Its totient is φ = 148135918.

The previous prime is 148135873. The next prime is 148135931. The reversal of 148135919 is 919531841.

It is a strong prime.

It is an emirp because it is prime and its reverse (919531841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148135919 is a prime.

It is a super-2 number, since 2×148135919² = 43888500995949122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148135969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74067959 + 74067960.

It is an arithmetic number, because the mean of its divisors is an integer number (74067960).

Almost surely, 2^148135919 is an apocalyptic number.

148135919 is a deficient number, since it is larger than the sum of its proper divisors (1).

148135919 is an equidigital number, since it uses as much as digits as its factorization.

148135919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 41.

The square root of 148135919 is about 12171.1100151137. The cubic root of 148135919 is about 529.1191241668.

The spelling of 148135919 in words is "one hundred forty-eight million, one hundred thirty-five thousand, nine hundred nineteen".