737747161 has 2 divisors, whose sum is σ = 737747162. Its totient is φ = 737747160.

The previous prime is 737747137. The next prime is 737747167. The reversal of 737747161 is 161747737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374616025 + 363131136 = 19355^2 + 19056^2 .

It is an emirp because it is prime and its reverse (161747737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 737747161 - 2²⁵ = 704192729 is a prime.

It is not a weakly prime, because it can be changed into another prime (737747167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 368873580 + 368873581.

It is an arithmetic number, because the mean of its divisors is an integer number (368873581).

Almost surely, 2^737747161 is an apocalyptic number.

It is an amenable number.

737747161 is a deficient number, since it is larger than the sum of its proper divisors (1).

737747161 is an equidigital number, since it uses as much as digits as its factorization.

737747161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172872, while the sum is 43.

The square root of 737747161 is about 27161.5014496622. The cubic root of 737747161 is about 903.5853527059.

The spelling of 737747161 in words is "seven hundred thirty-seven million, seven hundred forty-seven thousand, one hundred sixty-one".