61122601 has 4 divisors (see below), whose sum is σ = 64339600. Its totient is φ = 57905604.

The previous prime is 61122583. The next prime is 61122613. The reversal of 61122601 is 10622116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61122601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 3216979 = 61122601 / (6 + 1 + 1 + 2 + 2 + 6 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61122641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608471 + ... + 1608508.

It is an arithmetic number, because the mean of its divisors is an integer number (16084900).

Almost surely, 2^61122601 is an apocalyptic number.

It is an amenable number.

61122601 is a deficient number, since it is larger than the sum of its proper divisors (3216999).

61122601 is a wasteful number, since it uses less digits than its factorization.

61122601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216998.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 61122601 is about 7818.0944609284. The cubic root of 61122601 is about 393.9132677753.

Adding to 61122601 its reverse (10622116), we get a palindrome (71744717).

The spelling of 61122601 in words is "sixty-one million, one hundred twenty-two thousand, six hundred one".