61343501 has 4 divisors (see below), whose sum is σ = 61811904. Its totient is φ = 60875100.

The previous prime is 61343467. The next prime is 61343537. The reversal of 61343501 is 10534316.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61343501 is a prime.

It is a super-2 number, since 2×61343501² = 7526050229874002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61343591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234005 + ... + 234266.

It is an arithmetic number, because the mean of its divisors is an integer number (15452976).

Almost surely, 2^61343501 is an apocalyptic number.

It is an amenable number.

61343501 is a deficient number, since it is larger than the sum of its proper divisors (468403).

61343501 is a wasteful number, since it uses less digits than its factorization.

61343501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468402.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 61343501 is about 7832.2092030282. The cubic root of 61343501 is about 394.3872377057.

Adding to 61343501 its reverse (10534316), we get a palindrome (71877817).

The spelling of 61343501 in words is "sixty-one million, three hundred forty-three thousand, five hundred one".