2231370149 has 2 divisors, whose sum is σ = 2231370150. Its totient is φ = 2231370148.

The previous prime is 2231370083. The next prime is 2231370157. The reversal of 2231370149 is 9410731322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1671337924 + 560032225 = 40882^2 + 23665^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231370149 - 2⁸ = 2231369893 is a prime.

It is a super-3 number, since 3×2231370149³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231370199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115685074 + 1115685075.

It is an arithmetic number, because the mean of its divisors is an integer number (1115685075).

Almost surely, 2^2231370149 is an apocalyptic number.

It is an amenable number.

2231370149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231370149 is an equidigital number, since it uses as much as digits as its factorization.

2231370149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 2231370149 is about 47237.3808439884. The cubic root of 2231370149 is about 1306.7440750150.

The spelling of 2231370149 in words is "two billion, two hundred thirty-one million, three hundred seventy thousand, one hundred forty-nine".