61541401 has 2 divisors, whose sum is σ = 61541402. Its totient is φ = 61541400.

The previous prime is 61541387. The next prime is 61541407. The reversal of 61541401 is 10414516.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44235801 + 17305600 = 6651^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 61541401 - 2⁷ = 61541273 is a prime.

It is not a weakly prime, because it can be changed into another prime (61541407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30770700 + 30770701.

It is an arithmetic number, because the mean of its divisors is an integer number (30770701).

Almost surely, 2^61541401 is an apocalyptic number.

It is an amenable number.

61541401 is a deficient number, since it is larger than the sum of its proper divisors (1).

61541401 is an equidigital number, since it uses as much as digits as its factorization.

61541401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 61541401 is about 7844.8327579369. The cubic root of 61541401 is about 394.8108927615.

Adding to 61541401 its reverse (10414516), we get a palindrome (71955917).

The spelling of 61541401 in words is "sixty-one million, five hundred forty-one thousand, four hundred one".