61394155 has 8 divisors (see below), whose sum is σ = 73833552. Its totient is φ = 49008288.

The previous prime is 61394147. The next prime is 61394159. The reversal of 61394155 is 55149316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61394155 - 2³ = 61394147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61394155.

It is not an unprimeable number, because it can be changed into a prime (61394159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10812 + ... + 15481.

It is an arithmetic number, because the mean of its divisors is an integer number (9229194).

Almost surely, 2^61394155 is an apocalyptic number.

61394155 is a deficient number, since it is larger than the sum of its proper divisors (12439397).

61394155 is a wasteful number, since it uses less digits than its factorization.

61394155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26765.

The product of its digits is 16200, while the sum is 34.

The square root of 61394155 is about 7835.4422338500. The cubic root of 61394155 is about 394.4957620787.

The spelling of 61394155 in words is "sixty-one million, three hundred ninety-four thousand, one hundred fifty-five".