61452155 has 8 divisors (see below), whose sum is σ = 74213232. Its totient is φ = 48847968.

The previous prime is 61452151. The next prime is 61452179. The reversal of 61452155 is 55125416.

It is a happy number.

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 61452155 - 2² = 61452151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61452151) 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, 38357 + ... + 39926.

It is an arithmetic number, because the mean of its divisors is an integer number (9276654).

Almost surely, 2^61452155 is an apocalyptic number.

61452155 is a deficient number, since it is larger than the sum of its proper divisors (12761077).

61452155 is a wasteful number, since it uses less digits than its factorization.

61452155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78445.

The product of its digits is 6000, while the sum is 29.

The square root of 61452155 is about 7839.1424913698. The cubic root of 61452155 is about 394.6199517116.

The spelling of 61452155 in words is "sixty-one million, four hundred fifty-two thousand, one hundred fifty-five".