61150637 has 2 divisors, whose sum is σ = 61150638. Its totient is φ = 61150636.

The previous prime is 61150597. The next prime is 61150681. The reversal of 61150637 is 73605116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42367081 + 18783556 = 6509^2 + 4334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61150637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61150237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30575318 + 30575319.

It is an arithmetic number, because the mean of its divisors is an integer number (30575319).

Almost surely, 2^61150637 is an apocalyptic number.

It is an amenable number.

61150637 is a deficient number, since it is larger than the sum of its proper divisors (1).

61150637 is an equidigital number, since it uses as much as digits as its factorization.

61150637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 61150637 is about 7819.8872754024. The cubic root of 61150637 is about 393.9734858948.

The spelling of 61150637 in words is "sixty-one million, one hundred fifty thousand, six hundred thirty-seven".