61445196 has 48 divisors (see below), whose sum is σ = 162019200. Its totient is φ = 20132496.

The previous prime is 61445159. The next prime is 61445207. The reversal of 61445196 is 69154416.

It is a super-2 number, since 2×61445196² = 7551024222956832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 61445196.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1551 + ... + 11193.

It is an arithmetic number, because the mean of its divisors is an integer number (3375400).

Almost surely, 2^61445196 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 61445196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81009600).

61445196 is an abundant number, since it is smaller than the sum of its proper divisors (100574004).

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

61445196 is a wasteful number, since it uses less digits than its factorization.

61445196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715 (or 9707 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 61445196 is about 7838.6986164797. The cubic root of 61445196 is about 394.6050552234.

The spelling of 61445196 in words is "sixty-one million, four hundred forty-five thousand, one hundred ninety-six".