61001472 has 108 divisors (see below), whose sum is σ = 188975976. Its totient is φ = 17418240.

The previous prime is 61001467. The next prime is 61001503. The reversal of 61001472 is 27410016.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36822 + ... + 38442.

Almost surely, 2^61001472 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 61001472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94487988).

61001472 is an abundant number, since it is smaller than the sum of its proper divisors (127974504).

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

61001472 is a wasteful number, since it uses less digits than its factorization.

61001472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 61001472 is about 7810.3439104818. The cubic root of 61001472 is about 393.6528846912.

Adding to 61001472 its reverse (27410016), we get a palindrome (88411488).

The spelling of 61001472 in words is "sixty-one million, one thousand, four hundred seventy-two".