149876197 has 8 divisors (see below), whose sum is σ = 153762840. Its totient is φ = 146000640.

The previous prime is 149876189. The next prime is 149876201. The reversal of 149876197 is 791678941.

It can be written as a sum of positive squares in 4 ways, for example, as 31371201 + 118504996 = 5601^2 + 10886^2 .

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 149876197 - 2³ = 149876189 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 (149876117) 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, 29329 + ... + 34057.

It is an arithmetic number, because the mean of its divisors is an integer number (19220355).

Almost surely, 2^149876197 is an apocalyptic number.

It is an amenable number.

149876197 is a deficient number, since it is larger than the sum of its proper divisors (3886643).

149876197 is an equidigital number, since it uses as much as digits as its factorization.

149876197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543.

The product of its digits is 762048, while the sum is 52.

The square root of 149876197 is about 12242.3934342922. The cubic root of 149876197 is about 531.1830662246.

The spelling of 149876197 in words is "one hundred forty-nine million, eight hundred seventy-six thousand, one hundred ninety-seven".