94721149 has 2 divisors, whose sum is σ = 94721150. Its totient is φ = 94721148.

The previous prime is 94721129. The next prime is 94721167. The reversal of 94721149 is 94112749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81631225 + 13089924 = 9035^2 + 3618^2 .

It is a cyclic number.

It is not a de Polignac number, because 94721149 - 2⁵ = 94721117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94721129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47360574 + 47360575.

It is an arithmetic number, because the mean of its divisors is an integer number (47360575).

Almost surely, 2^94721149 is an apocalyptic number.

It is an amenable number.

94721149 is a deficient number, since it is larger than the sum of its proper divisors (1).

94721149 is an equidigital number, since it uses as much as digits as its factorization.

94721149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 94721149 is about 9732.4790778095. The cubic root of 94721149 is about 455.8433804107.

Subtracting from 94721149 its reverse (94112749), we obtain a square (608400 = 780²).

The spelling of 94721149 in words is "ninety-four million, seven hundred twenty-one thousand, one hundred forty-nine".