149368397 has 4 divisors (see below), whose sum is σ = 152546496. Its totient is φ = 146190300.

The previous prime is 149368337. The next prime is 149368399. The reversal of 149368397 is 793863941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149368397 - 2¹⁰ = 149367373 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 (149368399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588979 + ... + 1589072.

It is an arithmetic number, because the mean of its divisors is an integer number (38136624).

Almost surely, 2^149368397 is an apocalyptic number.

It is an amenable number.

149368397 is a deficient number, since it is larger than the sum of its proper divisors (3178099).

149368397 is an equidigital number, since it uses as much as digits as its factorization.

149368397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178098.

The product of its digits is 979776, while the sum is 50.

The square root of 149368397 is about 12221.6364288912. The cubic root of 149368397 is about 530.5824817127.

The spelling of 149368397 in words is "one hundred forty-nine million, three hundred sixty-eight thousand, three hundred ninety-seven".