61020356 has 24 divisors (see below), whose sum is σ = 108130176. Its totient is φ = 30129120.

The previous prime is 61020347. The next prime is 61020371. The reversal of 61020356 is 65302016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166085 + ... + 166451.

It is an arithmetic number, because the mean of its divisors is an integer number (4505424).

Almost surely, 2^61020356 is an apocalyptic number.

It is an amenable number.

61020356 is a deficient number, since it is larger than the sum of its proper divisors (47109820).

61020356 is a wasteful number, since it uses less digits than its factorization.

61020356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 61020356 is about 7811.5527265711. The cubic root of 61020356 is about 393.6935010561.

The spelling of 61020356 in words is "sixty-one million, twenty thousand, three hundred fifty-six".