148645815 has 16 divisors (see below), whose sum is σ = 238312800. Its totient is φ = 79117952.

The previous prime is 148645801. The next prime is 148645817. The reversal of 148645815 is 518546841.

It is a cyclic number.

It is not a de Polignac number, because 148645815 - 2⁴ = 148645799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148645817) 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, 2100 + ... + 17369.

It is an arithmetic number, because the mean of its divisors is an integer number (14894550).

Almost surely, 2^148645815 is an apocalyptic number.

148645815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

148645815 is a deficient number, since it is larger than the sum of its proper divisors (89666985).

148645815 is a wasteful number, since it uses less digits than its factorization.

148645815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19986.

The product of its digits is 153600, while the sum is 42.

The square root of 148645815 is about 12192.0390009219. The cubic root of 148645815 is about 529.7255194384.

The spelling of 148645815 in words is "one hundred forty-eight million, six hundred forty-five thousand, eight hundred fifteen".