149663397 has 16 divisors (see below), whose sum is σ = 215159168. Its totient is φ = 91990080.

The previous prime is 149663389. The next prime is 149663401. The reversal of 149663397 is 793366941.

It is a Wieferich number.

It is not a de Polignac number, because 149663397 - 2³ = 149663389 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 (149663347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40872 + ... + 44382.

It is an arithmetic number, because the mean of its divisors is an integer number (13447448).

Almost surely, 2^149663397 is an apocalyptic number.

It is an amenable number.

149663397 is a deficient number, since it is larger than the sum of its proper divisors (65495771).

149663397 is a wasteful number, since it uses less digits than its factorization.

149663397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620.

The product of its digits is 734832, while the sum is 48.

The square root of 149663397 is about 12233.6992361264. The cubic root of 149663397 is about 530.9315490869.

The spelling of 149663397 in words is "one hundred forty-nine million, six hundred sixty-three thousand, three hundred ninety-seven".