61317069 has 8 divisors (see below), whose sum is σ = 89188512. Its totient is φ = 37161840.

The previous prime is 61317037. The next prime is 61317083. The reversal of 61317069 is 96071316.

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

It is not a de Polignac number, because 61317069 - 2⁵ = 61317037 is a prime.

It is a super-2 number, since 2×61317069² = 7519565901501522, which contains 22 as substring.

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: 1858093 = 61317069 / (6 + 1 + 3 + 1 + 7 + 0 + 6 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61317019) 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, 929014 + ... + 929079.

It is an arithmetic number, because the mean of its divisors is an integer number (11148564).

Almost surely, 2^61317069 is an apocalyptic number.

It is an amenable number.

61317069 is a deficient number, since it is larger than the sum of its proper divisors (27871443).

61317069 is a wasteful number, since it uses less digits than its factorization.

61317069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858107.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 61317069 is about 7830.5216301342. The cubic root of 61317069 is about 394.3305843743.

The spelling of 61317069 in words is "sixty-one million, three hundred seventeen thousand, sixty-nine".