61130501 has 4 divisors (see below), whose sum is σ = 61225632. Its totient is φ = 61035372.

The previous prime is 61130497. The next prime is 61130539. The reversal of 61130501 is 10503116.

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 not a de Polignac number, because 61130501 - 2² = 61130497 is a prime.

It is a super-2 number, since 2×61130501² = 7473876305022002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61130501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61130551) 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, 46595 + ... + 47888.

It is an arithmetic number, because the mean of its divisors is an integer number (15306408).

Almost surely, 2^61130501 is an apocalyptic number.

It is an amenable number.

61130501 is a deficient number, since it is larger than the sum of its proper divisors (95131).

61130501 is an equidigital number, since it uses as much as digits as its factorization.

61130501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95130.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 61130501 is about 7818.5996828077. The cubic root of 61130501 is about 393.9302379342.

Adding to 61130501 its reverse (10503116), we get a palindrome (71633617).

The spelling of 61130501 in words is "sixty-one million, one hundred thirty thousand, five hundred one".