61215343 has 8 divisors (see below), whose sum is σ = 70080512. Its totient is φ = 52380216.

The previous prime is 61215331. The next prime is 61215373. The reversal of 61215343 is 34351216.

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

It is not a de Polignac number, because 61215343 - 2¹⁷ = 61084271 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 (61215373) 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, 2955 + ... + 11452.

It is an arithmetic number, because the mean of its divisors is an integer number (8760064).

Almost surely, 2^61215343 is an apocalyptic number.

61215343 is a deficient number, since it is larger than the sum of its proper divisors (8865169).

61215343 is a wasteful number, since it uses less digits than its factorization.

61215343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15021.

The product of its digits is 2160, while the sum is 25.

The square root of 61215343 is about 7824.0234534413. The cubic root of 61215343 is about 394.1123967515.

Adding to 61215343 its reverse (34351216), we get a palindrome (95566559).

The spelling of 61215343 in words is "sixty-one million, two hundred fifteen thousand, three hundred forty-three".