61340063 has 4 divisors (see below), whose sum is σ = 64948320. Its totient is φ = 57731808.

The previous prime is 61340053. The next prime is 61340093. The reversal of 61340063 is 36004316.

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 61340063 - 2⁸ = 61339807 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 (61340003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804103 + ... + 1804136.

It is an arithmetic number, because the mean of its divisors is an integer number (16237080).

Almost surely, 2^61340063 is an apocalyptic number.

61340063 is a deficient number, since it is larger than the sum of its proper divisors (3608257).

61340063 is a wasteful number, since it uses less digits than its factorization.

61340063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608256.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 61340063 is about 7831.9897216480. The cubic root of 61340063 is about 394.3798697497.

Adding to 61340063 its reverse (36004316), we get a palindrome (97344379).

The spelling of 61340063 in words is "sixty-one million, three hundred forty thousand, sixty-three".