1032401261 has 2 divisors, whose sum is σ = 1032401262. Its totient is φ = 1032401260.

The previous prime is 1032401213. The next prime is 1032401291. The reversal of 1032401261 is 1621042301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032401161 + 100 = 32131^2 + 10^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1032401261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1032401291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516200630 + 516200631.

It is an arithmetic number, because the mean of its divisors is an integer number (516200631).

Almost surely, 2^1032401261 is an apocalyptic number.

It is an amenable number.

1032401261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1032401261 is an equidigital number, since it uses as much as digits as its factorization.

1032401261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1032401261 is about 32131.0015561296. The cubic root of 1032401261 is about 1010.6858267137.

Adding to 1032401261 its reverse (1621042301), we get a palindrome (2653443562).

The spelling of 1032401261 in words is "one billion, thirty-two million, four hundred one thousand, two hundred sixty-one".