174894749 has 2 divisors, whose sum is σ = 174894750. Its totient is φ = 174894748.

The previous prime is 174894739. The next prime is 174894757. The reversal of 174894749 is 947498471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142324900 + 32569849 = 11930^2 + 5707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-174894749 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 174894749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (174894739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87447374 + 87447375.

It is an arithmetic number, because the mean of its divisors is an integer number (87447375).

Almost surely, 2^174894749 is an apocalyptic number.

It is an amenable number.

174894749 is a deficient number, since it is larger than the sum of its proper divisors (1).

174894749 is an equidigital number, since it uses as much as digits as its factorization.

174894749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 53.

The square root of 174894749 is about 13224.7778431246. Note that the first 3 decimals coincide. The cubic root of 174894749 is about 559.2323122382.

The spelling of 174894749 in words is "one hundred seventy-four million, eight hundred ninety-four thousand, seven hundred forty-nine".