61130207 has 4 divisors (see below), whose sum is σ = 61146000. Its totient is φ = 61114416.

The previous prime is 61130203. The next prime is 61130227. The reversal of 61130207 is 70203116.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61130207 - 2² = 61130203 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 (61130203) 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, 2294 + ... + 11292.

It is an arithmetic number, because the mean of its divisors is an integer number (15286500).

Almost surely, 2^61130207 is an apocalyptic number.

61130207 is a deficient number, since it is larger than the sum of its proper divisors (15793).

61130207 is an equidigital number, since it uses as much as digits as its factorization.

61130207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15792.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 61130207 is about 7818.5808814644. The cubic root of 61130207 is about 393.9296064127.

The spelling of 61130207 in words is "sixty-one million, one hundred thirty thousand, two hundred seven".