1544232161 has 2 divisors, whose sum is σ = 1544232162. Its totient is φ = 1544232160.

The previous prime is 1544232119. The next prime is 1544232203. The reversal of 1544232161 is 1612324451.

It is a balanced prime because it is at equal distance from previous prime (1544232119) and next prime (1544232203).

It can be written as a sum of positive squares in only one way, i.e., 1171008400 + 373223761 = 34220^2 + 19319^2 .

It is a cyclic number.

It is not a de Polignac number, because 1544232161 - 2⁶ = 1544232097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1544232101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772116080 + 772116081.

It is an arithmetic number, because the mean of its divisors is an integer number (772116081).

Almost surely, 2^1544232161 is an apocalyptic number.

It is an amenable number.

1544232161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1544232161 is an equidigital number, since it uses as much as digits as its factorization.

1544232161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 1544232161 is about 39296.7194686783. The cubic root of 1544232161 is about 1155.8572400763.

The spelling of 1544232161 in words is "one billion, five hundred forty-four million, two hundred thirty-two thousand, one hundred sixty-one".