371218949 has 2 divisors, whose sum is σ = 371218950. Its totient is φ = 371218948.

The previous prime is 371218931. The next prime is 371218993. The reversal of 371218949 is 949812173.

It is an a-pointer prime, because the next prime (371218993) can be obtained adding 371218949 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356832100 + 14386849 = 18890^2 + 3793^2 .

It is a cyclic number.

It is not a de Polignac number, because 371218949 - 2⁸ = 371218693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (371218909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185609474 + 185609475.

It is an arithmetic number, because the mean of its divisors is an integer number (185609475).

Almost surely, 2^371218949 is an apocalyptic number.

It is an amenable number.

371218949 is a deficient number, since it is larger than the sum of its proper divisors (1).

371218949 is an equidigital number, since it uses as much as digits as its factorization.

371218949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 371218949 is about 19267.0430787913. The cubic root of 371218949 is about 718.6929405088.

The spelling of 371218949 in words is "three hundred seventy-one million, two hundred eighteen thousand, nine hundred forty-nine".