148646919 has 4 divisors (see below), whose sum is σ = 198195896. Its totient is φ = 99097944.

The previous prime is 148646917. The next prime is 148646921. The reversal of 148646919 is 919646841.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (148646917) and next prime (148646921).

It is not a de Polignac number, because 148646919 - 2¹ = 148646917 is a prime.

It is a super-2 number, since 2×148646919² = 44191813056385122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148646917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24774484 + ... + 24774489.

It is an arithmetic number, because the mean of its divisors is an integer number (49548974).

Almost surely, 2^148646919 is an apocalyptic number.

148646919 is a deficient number, since it is larger than the sum of its proper divisors (49548977).

148646919 is an equidigital number, since it uses as much as digits as its factorization.

148646919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49548976.

The product of its digits is 373248, while the sum is 48.

The square root of 148646919 is about 12192.0842762835. The cubic root of 148646919 is about 529.7268308679.

The spelling of 148646919 in words is "one hundred forty-eight million, six hundred forty-six thousand, nine hundred nineteen".