148545019 has 6 divisors (see below), whose sum is σ = 172797324. Its totient is φ = 127324260.

The previous prime is 148545013. The next prime is 148545037. The reversal of 148545019 is 910545841.

It is not a de Polignac number, because 148545019 - 2¹⁹ = 148020731 is a prime.

It is a super-2 number, since 2×148545019² = 44131245339420722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148545013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1515717 + ... + 1515814.

It is an arithmetic number, because the mean of its divisors is an integer number (28799554).

Almost surely, 2^148545019 is an apocalyptic number.

148545019 is a deficient number, since it is larger than the sum of its proper divisors (24252305).

148545019 is an equidigital number, since it uses as much as digits as its factorization.

148545019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031545 (or 3031538 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 148545019 is about 12187.9046189245. The cubic root of 148545019 is about 529.6057576032.

The spelling of 148545019 in words is "one hundred forty-eight million, five hundred forty-five thousand, nineteen".