61940465 has 8 divisors (see below), whose sum is σ = 74516328. Its totient is φ = 49427200.

The previous prime is 61940453. The next prime is 61940477. The reversal of 61940465 is 56404916.

61940465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61940453) and next prime (61940477).

It can be written as a sum of positive squares in 4 ways, for example, as 19963024 + 41977441 = 4468^2 + 6479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61940465 - 2¹⁸ = 61678321 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 13442 + ... + 17451.

It is an arithmetic number, because the mean of its divisors is an integer number (9314541).

Almost surely, 2^61940465 is an apocalyptic number.

It is an amenable number.

61940465 is a deficient number, since it is larger than the sum of its proper divisors (12575863).

61940465 is a wasteful number, since it uses less digits than its factorization.

61940465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31299.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 61940465 is about 7870.2264897524. The cubic root of 61940465 is about 395.6624359472.

The spelling of 61940465 in words is "sixty-one million, nine hundred forty thousand, four hundred sixty-five".