61413155 has 16 divisors (see below), whose sum is σ = 78304320. Its totient is φ = 46150272.

The previous prime is 61413137. The next prime is 61413173. The reversal of 61413155 is 55131416.

61413155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61413137) and next prime (61413173).

It is a cyclic number.

It is not a de Polignac number, because 61413155 - 2⁶ = 61413091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359 + ... + 11088.

It is an arithmetic number, because the mean of its divisors is an integer number (4894020).

Almost surely, 2^61413155 is an apocalyptic number.

61413155 is a deficient number, since it is larger than the sum of its proper divisors (16891165).

61413155 is a wasteful number, since it uses less digits than its factorization.

61413155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11518.

The product of its digits is 1800, while the sum is 26.

The square root of 61413155 is about 7836.6545796022. The cubic root of 61413155 is about 394.5364535006.

The spelling of 61413155 in words is "sixty-one million, four hundred thirteen thousand, one hundred fifty-five".