61765230 has 16 divisors (see below), whose sum is σ = 148236624. Its totient is φ = 16470720.

The previous prime is 61765201. The next prime is 61765259. The reversal of 61765230 is 3256716.

It is an interprime number because it is at equal distance from previous prime (61765201) and next prime (61765259).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2058841 = 61765230 / (6 + 1 + 7 + 6 + 5 + 2 + 3 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029391 + ... + 1029450.

It is an arithmetic number, because the mean of its divisors is an integer number (9264789).

Almost surely, 2^61765230 is an apocalyptic number.

61765230 is an abundant number, since it is smaller than the sum of its proper divisors (86471394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61765230 is a wasteful number, since it uses less digits than its factorization.

61765230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058851.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 61765230 is about 7859.0858247000. The cubic root of 61765230 is about 395.2889623016.

The spelling of 61765230 in words is "sixty-one million, seven hundred sixty-five thousand, two hundred thirty".