61143153 has 4 divisors (see below), whose sum is σ = 81524208. Its totient is φ = 40762100.

The previous prime is 61143151. The next prime is 61143157. The reversal of 61143153 is 35134116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61143153 - 2¹ = 61143151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61143151) 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, 10190523 + ... + 10190528.

It is an arithmetic number, because the mean of its divisors is an integer number (20381052).

Almost surely, 2^61143153 is an apocalyptic number.

It is an amenable number.

61143153 is a deficient number, since it is larger than the sum of its proper divisors (20381055).

61143153 is a wasteful number, since it uses less digits than its factorization.

61143153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381054.

The product of its digits is 1080, while the sum is 24.

The square root of 61143153 is about 7819.4087372384. The cubic root of 61143153 is about 393.9574129204.

Adding to 61143153 its reverse (35134116), we get a palindrome (96277269).

The spelling of 61143153 in words is "sixty-one million, one hundred forty-three thousand, one hundred fifty-three".