1587360261 has 8 divisors (see below), whose sum is σ = 2240979264. Its totient is φ = 995990720.

The previous prime is 1587360241. The next prime is 1587360287. The reversal of 1587360261 is 1620637851.

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

It is a cyclic number.

It is not a de Polignac number, because 1587360261 - 2⁶ = 1587360197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587360241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15562305 + ... + 15562406.

It is an arithmetic number, because the mean of its divisors is an integer number (280122408).

Almost surely, 2^1587360261 is an apocalyptic number.

It is an amenable number.

1587360261 is a deficient number, since it is larger than the sum of its proper divisors (653619003).

1587360261 is a wasteful number, since it uses less digits than its factorization.

1587360261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31124731.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1587360261 is about 39841.6899867463. The cubic root of 1587360261 is about 1166.5190475084.

The spelling of 1587360261 in words is "one billion, five hundred eighty-seven million, three hundred sixty thousand, two hundred sixty-one".