61169152 has 40 divisors (see below), whose sum is σ = 133341912. Its totient is φ = 27801600.

The previous prime is 61169099. The next prime is 61169159. The reversal of 61169152 is 25196116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61169159) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 202 + ... + 11062.

Almost surely, 2^61169152 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 61169152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66670956).

61169152 is an abundant number, since it is smaller than the sum of its proper divisors (72172760).

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

61169152 is a wasteful number, since it uses less digits than its factorization.

61169152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10890 (or 10874 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 61169152 is about 7821.0710264004. The cubic root of 61169152 is about 394.0132439054.

The spelling of 61169152 in words is "sixty-one million, one hundred sixty-nine thousand, one hundred fifty-two".