61061000 has 256 divisors, whose sum is σ = 194987520. Its totient is φ = 17280000.

The previous prime is 61060997. The next prime is 61061009. The reversal of 61061000 is 16016.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1000970 + ... + 1001030.

It is an arithmetic number, because the mean of its divisors is an integer number (761670).

Almost surely, 2^61061000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61061000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97493760).

61061000 is an abundant number, since it is smaller than the sum of its proper divisors (133926520).

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

61061000 is a wasteful number, since it uses less digits than its factorization.

61061000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 61061000 is about 7814.1538249512. The cubic root of 61061000 is about 393.7808911684.

Adding to 61061000 its reverse (16016), we get a palindrome (61077016).

It can be divided in two parts, 610 and 61000, that multiplied together give a square (37210000 = 6100²).

The spelling of 61061000 in words is "sixty-one million, sixty-one thousand".