61056121 has 4 divisors (see below), whose sum is σ = 69778432. Its totient is φ = 52333812.

The previous prime is 61056113. The next prime is 61056133. The reversal of 61056121 is 12165016.

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 61056121 - 2³ = 61056113 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61056092 and 61056101.

It is not an unprimeable number, because it can be changed into a prime (61056161) 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, 4361145 + ... + 4361158.

It is an arithmetic number, because the mean of its divisors is an integer number (17444608).

Almost surely, 2^61056121 is an apocalyptic number.

It is an amenable number.

61056121 is a deficient number, since it is larger than the sum of its proper divisors (8722311).

61056121 is an equidigital number, since it uses as much as digits as its factorization.

61056121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722310.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 61056121 is about 7813.8416288021. The cubic root of 61056121 is about 393.7704027053.

The spelling of 61056121 in words is "sixty-one million, fifty-six thousand, one hundred twenty-one".