61122644 has 24 divisors (see below), whose sum is σ = 116887008. Its totient is φ = 27735840.

The previous prime is 61122641. The next prime is 61122647. The reversal of 61122644 is 44622116.

It is an interprime number because it is at equal distance from previous prime (61122641) and next prime (61122647).

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 48794 + ... + 50030.

It is an arithmetic number, because the mean of its divisors is an integer number (4870292).

Almost surely, 2^61122644 is an apocalyptic number.

It is an amenable number.

61122644 is a deficient number, since it is larger than the sum of its proper divisors (55764364).

61122644 is a wasteful number, since it uses less digits than its factorization.

61122644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375 (or 2373 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 61122644 is about 7818.0972109587. The cubic root of 61122644 is about 393.9133601484.

The spelling of 61122644 in words is "sixty-one million, one hundred twenty-two thousand, six hundred forty-four".