148345394 has 4 divisors (see below), whose sum is σ = 222518094. Its totient is φ = 74172696.

The previous prime is 148345391. The next prime is 148345429. The reversal of 148345394 is 493543841.

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

It can be written as a sum of positive squares in only one way, i.e., 139122025 + 9223369 = 11795^2 + 3037^2 .

It is not an unprimeable number, because it can be changed into a prime (148345391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37086347 + ... + 37086350.

Almost surely, 2^148345394 is an apocalyptic number.

148345394 is a deficient number, since it is larger than the sum of its proper divisors (74172700).

148345394 is an equidigital number, since it uses as much as digits as its factorization.

148345394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74172699.

The product of its digits is 207360, while the sum is 41.

The square root of 148345394 is about 12179.7123939771. The cubic root of 148345394 is about 529.3684110521.

The spelling of 148345394 in words is "one hundred forty-eight million, three hundred forty-five thousand, three hundred ninety-four".