61345273 has 8 divisors (see below), whose sum is σ = 67008960. Its totient is φ = 55696080.

The previous prime is 61345261. The next prime is 61345283. The reversal of 61345273 is 37254316.

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

It is not a de Polignac number, because 61345273 - 2²¹ = 59248121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61345283) 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, 6468 + ... + 12826.

It is an arithmetic number, because the mean of its divisors is an integer number (8376120).

Almost surely, 2^61345273 is an apocalyptic number.

It is an amenable number.

61345273 is a deficient number, since it is larger than the sum of its proper divisors (5663687).

61345273 is a wasteful number, since it uses less digits than its factorization.

61345273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7247.

The product of its digits is 15120, while the sum is 31.

The square root of 61345273 is about 7832.3223248281. The cubic root of 61345273 is about 394.3910351602.

Adding to 61345273 its reverse (37254316), we get a palindrome (98599589).

The spelling of 61345273 in words is "sixty-one million, three hundred forty-five thousand, two hundred seventy-three".