61153461 has 10 divisors (see below), whose sum is σ = 91352822. Its totient is φ = 40768920.

The previous prime is 61153447. The next prime is 61153501. The reversal of 61153461 is 16435116.

61153461 is a `hidden beast` number, since 611 + 5 + 3 + 46 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 43639236 + 17514225 = 6606^2 + 4185^2 .

It is not a de Polignac number, because 61153461 - 2⁷ = 61153333 is a prime.

It is a super-3 number, since 3×61153461³ (a number of 24 digits) contains 333 as substring.

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

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61153061) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 377410 + ... + 377571.

Almost surely, 2^61153461 is an apocalyptic number.

It is an amenable number.

61153461 is a deficient number, since it is larger than the sum of its proper divisors (30199361).

61153461 is an equidigital number, since it uses as much as digits as its factorization.

61153461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754993 (or 754984 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 61153461 is about 7820.0678385804. The cubic root of 61153461 is about 393.9795505031.

Adding to 61153461 its reverse (16435116), we get a palindrome (77588577).

The spelling of 61153461 in words is "sixty-one million, one hundred fifty-three thousand, four hundred sixty-one".