49032161 has 2 divisors, whose sum is σ = 49032162. Its totient is φ = 49032160.

The previous prime is 49032149. The next prime is 49032211. The reversal of 49032161 is 16123094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29495761 + 19536400 = 5431^2 + 4420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49032161 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is equal to p_2946320 and since 49032161 and 2946320 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49032161.

It is not a weakly prime, because it can be changed into another prime (49032101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24516080 + 24516081.

It is an arithmetic number, because the mean of its divisors is an integer number (24516081).

Almost surely, 2^49032161 is an apocalyptic number.

It is an amenable number.

49032161 is a deficient number, since it is larger than the sum of its proper divisors (1).

49032161 is an equidigital number, since it uses as much as digits as its factorization.

49032161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 49032161 is about 7002.2968374670. The cubic root of 49032161 is about 366.0106126299.

The spelling of 49032161 in words is "forty-nine million, thirty-two thousand, one hundred sixty-one".