61106145 has 16 divisors (see below), whose sum is σ = 97933632. Its totient is φ = 32535360.

The previous prime is 61106141. The next prime is 61106153. The reversal of 61106145 is 54160116.

It is not a de Polignac number, because 61106145 - 2² = 61106141 is a prime.

It is a super-2 number, since 2×61106145² = 7467921913522050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61106141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6834 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (6120852).

Almost surely, 2^61106145 is an apocalyptic number.

It is an amenable number.

61106145 is a deficient number, since it is larger than the sum of its proper divisors (36827487).

61106145 is a wasteful number, since it uses less digits than its factorization.

61106145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 61106145 is about 7817.0419597185. The cubic root of 61106145 is about 393.8779135939.

The spelling of 61106145 in words is "sixty-one million, one hundred six thousand, one hundred forty-five".