61033121 has 4 divisors (see below), whose sum is σ = 61603632. Its totient is φ = 60462612.

The previous prime is 61033103. The next prime is 61033127. The reversal of 61033121 is 12133016.

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 61033121 - 2¹⁸ = 60770977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61033121.

It is not an unprimeable number, because it can be changed into a prime (61033127) 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, 285095 + ... + 285308.

It is an arithmetic number, because the mean of its divisors is an integer number (15400908).

Almost surely, 2^61033121 is an apocalyptic number.

It is an amenable number.

61033121 is a deficient number, since it is larger than the sum of its proper divisors (570511).

61033121 is a wasteful number, since it uses less digits than its factorization.

61033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570510.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 61033121 is about 7812.3697429141. The cubic root of 61033121 is about 393.7209517161.

Adding to 61033121 its reverse (12133016), we get a palindrome (73166137).

The spelling of 61033121 in words is "sixty-one million, thirty-three thousand, one hundred twenty-one".