61534201 has 4 divisors (see below), whose sum is σ = 63656100. Its totient is φ = 59412304.

The previous prime is 61534189. The next prime is 61534273. The reversal of 61534201 is 10243516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27836176 + 33698025 = 5276^2 + 5805^2 .

It is a cyclic number.

It is not a de Polignac number, because 61534201 - 2¹⁹ = 61009913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61532201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060906 + ... + 1060963.

It is an arithmetic number, because the mean of its divisors is an integer number (15914025).

Almost surely, 2^61534201 is an apocalyptic number.

It is an amenable number.

61534201 is a deficient number, since it is larger than the sum of its proper divisors (2121899).

61534201 is a wasteful number, since it uses less digits than its factorization.

61534201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121898.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 61534201 is about 7844.3738437175. The cubic root of 61534201 is about 394.7954952716.

Adding to 61534201 its reverse (10243516), we get a palindrome (71777717).

The spelling of 61534201 in words is "sixty-one million, five hundred thirty-four thousand, two hundred one".