61001118 has 24 divisors (see below), whose sum is σ = 136433856. Its totient is φ = 19677600.

The previous prime is 61001107. The next prime is 61001119. The reversal of 61001118 is 81110016.

It is a super-2 number, since 2×61001118² = 7442272794499848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 61001118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61001119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54103 + ... + 55218.

It is an arithmetic number, because the mean of its divisors is an integer number (5684744).

Almost surely, 2^61001118 is an apocalyptic number.

61001118 is an abundant number, since it is smaller than the sum of its proper divisors (75432738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61001118 is a wasteful number, since it uses less digits than its factorization.

61001118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109360 (or 109357 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 61001118 is about 7810.3212481946. The cubic root of 61001118 is about 393.6521232157.

The spelling of 61001118 in words is "sixty-one million, one thousand, one hundred eighteen".