148253391 has 36 divisors (see below), whose sum is σ = 252992376. Its totient is φ = 82929600.

The previous prime is 148253387. The next prime is 148253393. The reversal of 148253391 is 193352841.

148253391 is a `hidden beast` number, since 14 + 8 + 253 + 391 = 666.

It is not a de Polignac number, because 148253391 - 2² = 148253387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148253393) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12301 + ... + 21161.

It is an arithmetic number, because the mean of its divisors is an integer number (7027566).

Almost surely, 2^148253391 is an apocalyptic number.

148253391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

148253391 is a deficient number, since it is larger than the sum of its proper divisors (104738985).

148253391 is a wasteful number, since it uses less digits than its factorization.

148253391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8904 (or 8888 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 148253391 is about 12175.9349127695. The cubic root of 148253391 is about 529.2589512915.

The spelling of 148253391 in words is "one hundred forty-eight million, two hundred fifty-three thousand, three hundred ninety-one".