61187465 has 8 divisors (see below), whose sum is σ = 73912128. Its totient is φ = 48625200.

The previous prime is 61187461. The next prime is 61187473. The reversal of 61187465 is 56478116.

61187465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61187465 - 2² = 61187461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61187461) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39767 + ... + 41276.

It is an arithmetic number, because the mean of its divisors is an integer number (9239016).

Almost surely, 2^61187465 is an apocalyptic number.

It is an amenable number.

61187465 is a deficient number, since it is larger than the sum of its proper divisors (12724663).

61187465 is a wasteful number, since it uses less digits than its factorization.

61187465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81199.

The product of its digits is 40320, while the sum is 38.

The square root of 61187465 is about 7822.2416863710. The cubic root of 61187465 is about 394.0525602620.

The spelling of 61187465 in words is "sixty-one million, one hundred eighty-seven thousand, four hundred sixty-five".