61223733 has 6 divisors (see below), whose sum is σ = 88434294. Its totient is φ = 40815816.

The previous prime is 61223731. The next prime is 61223741. The reversal of 61223733 is 33732216.

It can be written as a sum of positive squares in only one way, i.e., 49238289 + 11985444 = 7017^2 + 3462^2 .

It is not a de Polignac number, because 61223733 - 2¹ = 61223731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61223697 and 61223706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61223731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3401310 + ... + 3401327.

It is an arithmetic number, because the mean of its divisors is an integer number (14739049).

Almost surely, 2^61223733 is an apocalyptic number.

It is an amenable number.

61223733 is a deficient number, since it is larger than the sum of its proper divisors (27210561).

61223733 is a wasteful number, since it uses less digits than its factorization.

61223733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6802643 (or 6802640 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 61223733 is about 7824.5596042205. The cubic root of 61223733 is about 394.1304012353.

Adding to 61223733 its reverse (33732216), we get a palindrome (94955949).

The spelling of 61223733 in words is "sixty-one million, two hundred twenty-three thousand, seven hundred thirty-three".