148891399 has 8 divisors (see below), whose sum is σ = 150485472. Its totient is φ = 147302400.

The previous prime is 148891387. The next prime is 148891433. The reversal of 148891399 is 993198841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 148891399 - 2²⁵ = 115336967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148891319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92199 + ... + 93799.

It is an arithmetic number, because the mean of its divisors is an integer number (18810684).

Almost surely, 2^148891399 is an apocalyptic number.

148891399 is a deficient number, since it is larger than the sum of its proper divisors (1594073).

148891399 is a wasteful number, since it uses less digits than its factorization.

148891399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537.

The product of its digits is 559872, while the sum is 52.

The square root of 148891399 is about 12202.1063345637. The cubic root of 148891399 is about 530.0170861942.

The spelling of 148891399 in words is "one hundred forty-eight million, eight hundred ninety-one thousand, three hundred ninety-nine".