61290961 has 8 divisors (see below), whose sum is σ = 62740224. Its totient is φ = 59847840.

The previous prime is 61290919. The next prime is 61291003. The reversal of 61290961 is 16909216.

It is an interprime number because it is at equal distance from previous prime (61290919) and next prime (61291003).

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

It is a cyclic number.

It is not a de Polignac number, because 61290961 - 2¹⁵ = 61258193 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61291961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23236 + ... + 25738.

It is an arithmetic number, because the mean of its divisors is an integer number (7842528).

Almost surely, 2^61290961 is an apocalyptic number.

It is an amenable number.

61290961 is a deficient number, since it is larger than the sum of its proper divisors (1449263).

61290961 is a wasteful number, since it uses less digits than its factorization.

61290961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 61290961 is about 7828.8543861794. The cubic root of 61290961 is about 394.2746095069.

The spelling of 61290961 in words is "sixty-one million, two hundred ninety thousand, nine hundred sixty-one".