148181407 has 4 divisors (see below), whose sum is σ = 161652456. Its totient is φ = 134710360.

The previous prime is 148181393. The next prime is 148181413. The reversal of 148181407 is 704181841.

148181407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704181841 = 11 ⋅64016531.

It is a cyclic number.

It is not a de Polignac number, because 148181407 - 2¹⁹ = 147657119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148181497) 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, 6735508 + ... + 6735529.

It is an arithmetic number, because the mean of its divisors is an integer number (40413114).

Almost surely, 2^148181407 is an apocalyptic number.

148181407 is a deficient number, since it is larger than the sum of its proper divisors (13471049).

148181407 is a wasteful number, since it uses less digits than its factorization.

148181407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13471048.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 148181407 is about 12172.9785590873. The cubic root of 148181407 is about 529.1732773790.

The spelling of 148181407 in words is "one hundred forty-eight million, one hundred eighty-one thousand, four hundred seven".