61100007 has 8 divisors (see below), whose sum is σ = 81805680. Its totient is φ = 40563840.

The previous prime is 61100003. The next prime is 61100027. The reversal of 61100007 is 70000116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61100007 - 2² = 61100003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61100003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41532 + ... + 42977.

It is an arithmetic number, because the mean of its divisors is an integer number (10225710).

Almost surely, 2^61100007 is an apocalyptic number.

61100007 is a deficient number, since it is larger than the sum of its proper divisors (20705673).

61100007 is a wasteful number, since it uses less digits than its factorization.

61100007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84753.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 61100007 is about 7816.6493461073. The cubic root of 61100007 is about 393.8647250481.

The spelling of 61100007 in words is "sixty-one million, one hundred thousand, seven".