148390815 has 16 divisors (see below), whose sum is σ = 237772800. Its totient is φ = 79025952.

The previous prime is 148390811. The next prime is 148390861. The reversal of 148390815 is 518093841.

148390815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 148390815 - 2² = 148390811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148390811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3906 + ... + 17664.

It is an arithmetic number, because the mean of its divisors is an integer number (14860800).

Almost surely, 2^148390815 is an apocalyptic number.

148390815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

148390815 is a deficient number, since it is larger than the sum of its proper divisors (89381985).

148390815 is a wasteful number, since it uses less digits than its factorization.

148390815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14486.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 148390815 is about 12181.5768683697. The cubic root of 148390815 is about 529.4224336013.

The spelling of 148390815 in words is "one hundred forty-eight million, three hundred ninety thousand, eight hundred fifteen".