149397 has 8 divisors (see below), whose sum is σ = 209760. Its totient is φ = 94320.

The previous prime is 149393. The next prime is 149399. The reversal of 149397 is 793941.

149397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 149397 - 2² = 149393 is a prime.

149397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1254 + ... + 1367.

It is an arithmetic number, because the mean of its divisors is an integer number (26220).

2¹⁴⁹³⁹⁷ is an apocalyptic number.

It is an amenable number.

149397 is a deficient number, since it is larger than the sum of its proper divisors (60363).

149397 is a wasteful number, since it uses less digits than its factorization.

149397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its digits is 6804, while the sum is 33.

The square root of 149397 is about 386.5190810296. The cubic root of 149397 is about 53.0616347159.

The spelling of 149397 in words is "one hundred forty-nine thousand, three hundred ninety-seven".