61245001 has 2 divisors, whose sum is σ = 61245002. Its totient is φ = 61245000.

The previous prime is 61244993. The next prime is 61245007. The reversal of 61245001 is 10054216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55950400 + 5294601 = 7480^2 + 2301^2 .

It is a cyclic number.

It is not a de Polignac number, because 61245001 - 2³ = 61244993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61245001.

It is not a weakly prime, because it can be changed into another prime (61245007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30622500 + 30622501.

It is an arithmetic number, because the mean of its divisors is an integer number (30622501).

Almost surely, 2^61245001 is an apocalyptic number.

It is an amenable number.

61245001 is a deficient number, since it is larger than the sum of its proper divisors (1).

61245001 is an equidigital number, since it uses as much as digits as its factorization.

61245001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 61245001 is about 7825.9185403376. The cubic root of 61245001 is about 394.1760338384.

Adding to 61245001 its reverse (10054216), we get a palindrome (71299217).

The spelling of 61245001 in words is "sixty-one million, two hundred forty-five thousand, one".