61201487 has 2 divisors, whose sum is σ = 61201488. Its totient is φ = 61201486.

The previous prime is 61201463. The next prime is 61201499. The reversal of 61201487 is 78410216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61201487 - 2⁶ = 61201423 is a prime.

It is a super-2 number, since 2×61201487² = 7491244022022338, which contains 22 as substring.

It is equal to p_3629180 and since 61201487 and 3629180 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61201417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30600743 + 30600744.

It is an arithmetic number, because the mean of its divisors is an integer number (30600744).

Almost surely, 2^61201487 is an apocalyptic number.

61201487 is a deficient number, since it is larger than the sum of its proper divisors (1).

61201487 is an equidigital number, since it uses as much as digits as its factorization.

61201487 is an evil number, because the sum of its binary digits is even.

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

The square root of 61201487 is about 7823.1379254107. The cubic root of 61201487 is about 394.0826589267.

The spelling of 61201487 in words is "sixty-one million, two hundred one thousand, four hundred eighty-seven".