61487201 has 4 divisors (see below), whose sum is σ = 62265600. Its totient is φ = 60708804.

The previous prime is 61487191. The next prime is 61487269. The reversal of 61487201 is 10278416.

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 61487201 - 2⁶ = 61487137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61487281) 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, 389081 + ... + 389238.

It is an arithmetic number, because the mean of its divisors is an integer number (15566400).

Almost surely, 2^61487201 is an apocalyptic number.

It is an amenable number.

61487201 is a deficient number, since it is larger than the sum of its proper divisors (778399).

61487201 is an equidigital number, since it uses as much as digits as its factorization.

61487201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778398.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 61487201 is about 7841.3774937826. The cubic root of 61487201 is about 394.6949543572.

The spelling of 61487201 in words is "sixty-one million, four hundred eighty-seven thousand, two hundred one".