61315089 has 8 divisors (see below), whose sum is σ = 89185632. Its totient is φ = 37160640.

The previous prime is 61315081. The next prime is 61315097. The reversal of 61315089 is 98051316.

It is an interprime number because it is at equal distance from previous prime (61315081) and next prime (61315097).

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

It is not a de Polignac number, because 61315089 - 2³ = 61315081 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1858033 = 61315089 / (6 + 1 + 3 + 1 + 5 + 0 + 8 + 9).

It is not an unprimeable number, because it can be changed into a prime (61315081) 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, 928984 + ... + 929049.

It is an arithmetic number, because the mean of its divisors is an integer number (11148204).

Almost surely, 2^61315089 is an apocalyptic number.

It is an amenable number.

61315089 is a deficient number, since it is larger than the sum of its proper divisors (27870543).

61315089 is a wasteful number, since it uses less digits than its factorization.

61315089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858047.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 61315089 is about 7830.3952007546. The cubic root of 61315089 is about 394.3263398631.

The spelling of 61315089 in words is "sixty-one million, three hundred fifteen thousand, eighty-nine".