61145286 has 16 divisors (see below), whose sum is σ = 122479344. Its totient is φ = 20350304.

The previous prime is 61145281. The next prime is 61145297. The reversal of 61145286 is 68254116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61145281) 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, 3465 + ... + 11588.

It is an arithmetic number, because the mean of its divisors is an integer number (7654959).

Almost surely, 2^61145286 is an apocalyptic number.

61145286 is an abundant number, since it is smaller than the sum of its proper divisors (61334058).

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

61145286 is a wasteful number, since it uses less digits than its factorization.

61145286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15735.

The product of its digits is 11520, while the sum is 33.

The square root of 61145286 is about 7819.5451274355. The cubic root of 61145286 is about 393.9619939806.

The spelling of 61145286 in words is "sixty-one million, one hundred forty-five thousand, two hundred eighty-six".