61828153 has 4 divisors (see below), whose sum is σ = 62675188. Its totient is φ = 60981120.

The previous prime is 61828141. The next prime is 61828159. The reversal of 61828153 is 35182816.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20457529 + 41370624 = 4523^2 + 6432^2 .

It is a cyclic number.

It is not a de Polignac number, because 61828153 - 2¹⁷ = 61697081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61828159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423408 + ... + 423553.

It is an arithmetic number, because the mean of its divisors is an integer number (15668797).

Almost surely, 2^61828153 is an apocalyptic number.

It is an amenable number.

61828153 is a deficient number, since it is larger than the sum of its proper divisors (847035).

61828153 is an equidigital number, since it uses as much as digits as its factorization.

61828153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847034.

The product of its digits is 11520, while the sum is 34.

The square root of 61828153 is about 7863.0880066295. The cubic root of 61828153 is about 395.4231495879.

The spelling of 61828153 in words is "sixty-one million, eight hundred twenty-eight thousand, one hundred fifty-three".