148121505 has 24 divisors (see below), whose sum is σ = 293422272. Its totient is φ = 67712544.

The previous prime is 148121483. The next prime is 148121513. The reversal of 148121505 is 505121841.

148121505 is a `hidden beast` number, since 148 + 12 + 1 + 505 = 666.

It is not a de Polignac number, because 148121505 - 2⁷ = 148121377 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234799 + ... + 235428.

It is an arithmetic number, because the mean of its divisors is an integer number (12225928).

Almost surely, 2^148121505 is an apocalyptic number.

148121505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148121505 is a deficient number, since it is larger than the sum of its proper divisors (145300767).

148121505 is a wasteful number, since it uses less digits than its factorization.

148121505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470245 (or 470242 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 148121505 is about 12170.5178607979. The cubic root of 148121505 is about 529.1019620666.

The spelling of 148121505 in words is "one hundred forty-eight million, one hundred twenty-one thousand, five hundred five".