61225738 has 32 divisors (see below), whose sum is σ = 111849984. Its totient is φ = 24536832.

The previous prime is 61225729. The next prime is 61225741. The reversal of 61225738 is 83752216.

It is a happy number.

61225738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40431 + ... + 41917.

It is an arithmetic number, because the mean of its divisors is an integer number (3495312).

Almost surely, 2^61225738 is an apocalyptic number.

61225738 is a deficient number, since it is larger than the sum of its proper divisors (50624246).

61225738 is a wasteful number, since it uses less digits than its factorization.

61225738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686.

The product of its digits is 20160, while the sum is 34.

The square root of 61225738 is about 7824.6877253984. The cubic root of 61225738 is about 394.1347036128.

The spelling of 61225738 in words is "sixty-one million, two hundred twenty-five thousand, seven hundred thirty-eight".