61301487 has 8 divisors (see below), whose sum is σ = 88022704. Its totient is φ = 37723968.

The previous prime is 61301459. The next prime is 61301497. The reversal of 61301487 is 78410316.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61301487 - 2²³ = 52912879 is a prime.

It is a super-2 number, since 2×61301487² = 7515744616822338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61301407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785878 + ... + 785955.

It is an arithmetic number, because the mean of its divisors is an integer number (11002838).

Almost surely, 2^61301487 is an apocalyptic number.

61301487 is a deficient number, since it is larger than the sum of its proper divisors (26721217).

61301487 is a wasteful number, since it uses less digits than its factorization.

61301487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571849.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 61301487 is about 7829.5266140425. The cubic root of 61301487 is about 394.2971788869.

The spelling of 61301487 in words is "sixty-one million, three hundred one thousand, four hundred eighty-seven".