71301949 has 2 divisors, whose sum is σ = 71301950. Its totient is φ = 71301948.

The previous prime is 71301943. The next prime is 71301977. The reversal of 71301949 is 94910317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68773849 + 2528100 = 8293^2 + 1590^2 .

It is a cyclic number.

It is not a de Polignac number, because 71301949 - 2⁹ = 71301437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71301943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35650974 + 35650975.

It is an arithmetic number, because the mean of its divisors is an integer number (35650975).

Almost surely, 2^71301949 is an apocalyptic number.

It is an amenable number.

71301949 is a deficient number, since it is larger than the sum of its proper divisors (1).

71301949 is an equidigital number, since it uses as much as digits as its factorization.

71301949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 71301949 is about 8444.0481405544. The cubic root of 71301949 is about 414.6679474802.

The spelling of 71301949 in words is "seventy-one million, three hundred one thousand, nine hundred forty-nine".