148775805 has 32 divisors (see below), whose sum is σ = 266152320. Its totient is φ = 78848640.

The previous prime is 148775777. The next prime is 148775813. The reversal of 148775805 is 508577841.

It is a happy number.

It is not a de Polignac number, because 148775805 - 2⁶ = 148775741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18625 + ... + 25385.

It is an arithmetic number, because the mean of its divisors is an integer number (8317260).

Almost surely, 2^148775805 is an apocalyptic number.

148775805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148775805 is a deficient number, since it is larger than the sum of its proper divisors (117376515).

148775805 is a wasteful number, since it uses less digits than its factorization.

148775805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938 (or 6932 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 148775805 is about 12197.3687736331. The cubic root of 148775805 is about 529.8798885287.

The spelling of 148775805 in words is "one hundred forty-eight million, seven hundred seventy-five thousand, eight hundred five".