61554141 has 32 divisors (see below), whose sum is σ = 103818240. Its totient is φ = 35679600.

The previous prime is 61554133. The next prime is 61554191. The reversal of 61554141 is 14145516.

61554141 is a `hidden beast` number, since 615 + 5 + 4 + 1 + 41 = 666.

It is not a de Polignac number, because 61554141 - 2³ = 61554133 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61554121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2326 + ... + 11336.

It is an arithmetic number, because the mean of its divisors is an integer number (3244320).

Almost surely, 2^61554141 is an apocalyptic number.

It is an amenable number.

61554141 is a deficient number, since it is larger than the sum of its proper divisors (42264099).

61554141 is a wasteful number, since it uses less digits than its factorization.

61554141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054 (or 9048 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 61554141 is about 7845.6447153819. The cubic root of 61554141 is about 394.8381348221.

Adding to 61554141 its reverse (14145516), we get a palindrome (75699657).

It can be divided in two parts, 6155 and 4141, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 61554141 in words is "sixty-one million, five hundred fifty-four thousand, one hundred forty-one".