61219152 has 50 divisors (see below), whose sum is σ = 177189738. Its totient is φ = 20405952.

The previous prime is 61219139. The next prime is 61219153. The reversal of 61219152 is 25191216.

It can be written as a sum of positive squares in only one way, i.e., 33593616 + 27625536 = 5796^2 + 5256^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61219153) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 22323 + ... + 24914.

Almost surely, 2^61219152 is an apocalyptic number.

It is an amenable number.

61219152 is an abundant number, since it is smaller than the sum of its proper divisors (115970586).

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

61219152 is a wasteful number, since it uses less digits than its factorization.

61219152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47257 (or 47242 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 61219152 is about 7824.2668666144. The cubic root of 61219152 is about 394.1205708623.

The spelling of 61219152 in words is "sixty-one million, two hundred nineteen thousand, one hundred fifty-two".