61273641 has 32 divisors (see below), whose sum is σ = 96550272. Its totient is φ = 34076160.

The previous prime is 61273609. The next prime is 61273643. The reversal of 61273641 is 14637216.

It is not a de Polignac number, because 61273641 - 2⁵ = 61273609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61273599 and 61273608.

It is not an unprimeable number, because it can be changed into a prime (61273643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99651 + ... + 100263.

It is an arithmetic number, because the mean of its divisors is an integer number (3017196).

Almost surely, 2^61273641 is an apocalyptic number.

It is an amenable number.

61273641 is a deficient number, since it is larger than the sum of its proper divisors (35276631).

61273641 is a wasteful number, since it uses less digits than its factorization.

61273641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its digits is 6048, while the sum is 30.

The square root of 61273641 is about 7827.7481436234. The cubic root of 61273641 is about 394.2374671100.

The spelling of 61273641 in words is "sixty-one million, two hundred seventy-three thousand, six hundred forty-one".