61212141 has 12 divisors (see below), whose sum is σ = 89330332. Its totient is φ = 40386816.

The previous prime is 61212119. The next prime is 61212149. The reversal of 61212141 is 14121216.

61212141 is a `hidden beast` number, since 612 + 12 + 1 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25857225 + 35354916 = 5085^2 + 5946^2 .

It is not a de Polignac number, because 61212141 - 2⁶ = 61212077 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61212149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34186 + ... + 35931.

Almost surely, 2^61212141 is an apocalyptic number.

It is an amenable number.

61212141 is a deficient number, since it is larger than the sum of its proper divisors (28118191).

61212141 is a wasteful number, since it uses less digits than its factorization.

61212141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70220 (or 70217 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 61212141 is about 7823.8188245894. The cubic root of 61212141 is about 394.1055249999.

Adding to 61212141 its reverse (14121216), we get a palindrome (75333357).

The spelling of 61212141 in words is "sixty-one million, two hundred twelve thousand, one hundred forty-one".