197051149 has 4 divisors (see below), whose sum is σ = 198231264. Its totient is φ = 195871036.

The previous prime is 197051089. The next prime is 197051161. The reversal of 197051149 is 941150791.

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 a de Polignac number, because none of the positive numbers 2^k-197051149 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 (197051249) 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, 589807 + ... + 590140.

It is an arithmetic number, because the mean of its divisors is an integer number (49557816).

Almost surely, 2^197051149 is an apocalyptic number.

It is an amenable number.

197051149 is a deficient number, since it is larger than the sum of its proper divisors (1180115).

197051149 is a wasteful number, since it uses less digits than its factorization.

197051149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180114.

The product of its (nonzero) digits is 11340, while the sum is 37.

The square root of 197051149 is about 14037.4908370406. The cubic root of 197051149 is about 581.9151407710.

The spelling of 197051149 in words is "one hundred ninety-seven million, fifty-one thousand, one hundred forty-nine".