61015332 has 48 divisors (see below), whose sum is σ = 163602432. Its totient is φ = 17337120.

The previous prime is 61015319. The next prime is 61015337. The reversal of 61015332 is 23351016.

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

It is a junction number, because it is equal to n+sod(n) for n = 61015299 and 61015308.

It is not an unprimeable number, because it can be changed into a prime (61015337) 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, 14143 + ... + 17945.

It is an arithmetic number, because the mean of its divisors is an integer number (3408384).

Almost surely, 2^61015332 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 61015332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81801216).

61015332 is an abundant number, since it is smaller than the sum of its proper divisors (102587100).

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

61015332 is a wasteful number, since it uses less digits than its factorization.

61015332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008 (or 4006 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 61015332 is about 7811.2311449604. The cubic root of 61015332 is about 393.6826960801.

Adding to 61015332 its reverse (23351016), we get a palindrome (84366348).

The spelling of 61015332 in words is "sixty-one million, fifteen thousand, three hundred thirty-two".