61350165 has 24 divisors (see below), whose sum is σ = 106800408. Its totient is φ = 32578560.

The previous prime is 61350151. The next prime is 61350169. The reversal of 61350165 is 56105316.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2965284 + 58384881 = 1722^2 + 7641^2 .

It is not a de Polignac number, because 61350165 - 2²¹ = 59253013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61350169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8017 + ... + 13673.

It is an arithmetic number, because the mean of its divisors is an integer number (4450017).

Almost surely, 2^61350165 is an apocalyptic number.

It is an amenable number.

61350165 is a deficient number, since it is larger than the sum of its proper divisors (45450243).

61350165 is a wasteful number, since it uses less digits than its factorization.

61350165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909 (or 5906 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 61350165 is about 7832.6346142278. The cubic root of 61350165 is about 394.4015184980.

It can be divided in two parts, 61350 and 165, that multiplied together give a triangular number (10122750 = T₄₄₉₉).

The spelling of 61350165 in words is "sixty-one million, three hundred fifty thousand, one hundred sixty-five".