61350391 has 8 divisors (see below), whose sum is σ = 63073584. Its totient is φ = 59638080.

The previous prime is 61350389. The next prime is 61350397. The reversal of 61350391 is 19305316.

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 61350391 - 2¹ = 61350389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61350397) 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, 9460 + ... + 14566.

It is an arithmetic number, because the mean of its divisors is an integer number (7884198).

Almost surely, 2^61350391 is an apocalyptic number.

61350391 is a deficient number, since it is larger than the sum of its proper divisors (1723193).

61350391 is a wasteful number, since it uses less digits than its factorization.

61350391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5441.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 61350391 is about 7832.6490410333. The cubic root of 61350391 is about 394.4020027924.

The spelling of 61350391 in words is "sixty-one million, three hundred fifty thousand, three hundred ninety-one".