61310407 has 4 divisors (see below), whose sum is σ = 61334856. Its totient is φ = 61285960.

The previous prime is 61310401. The next prime is 61310411. The reversal of 61310407 is 70401316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61310407 - 2¹⁹ = 60786119 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 (61310401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7969 + ... + 13642.

It is an arithmetic number, because the mean of its divisors is an integer number (15333714).

Almost surely, 2^61310407 is an apocalyptic number.

61310407 is a deficient number, since it is larger than the sum of its proper divisors (24449).

61310407 is a wasteful number, since it uses less digits than its factorization.

61310407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24448.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 61310407 is about 7830.0962318480. The cubic root of 61310407 is about 394.3163027311.

Subtracting 61310407 from its reverse (70401316), we obtain a palindrome (9090909).

The spelling of 61310407 in words is "sixty-one million, three hundred ten thousand, four hundred seven".