1587201 has 16 divisors (see below), whose sum is σ = 2638848. Its totient is φ = 824400.

The previous prime is 1587197. The next prime is 1587221. The reversal of 1587201 is 1027851.

It is not a de Polignac number, because 1587201 - 2² = 1587197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205 + ... + 3666.

It is an arithmetic number, because the mean of its divisors is an integer number (164928).

It is a Proth number, since it is equal to 775 ⋅ 2¹¹ + 1 and 775 < 2¹¹.

2^1587201 is an apocalyptic number.

1587201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1587201 is a deficient number, since it is larger than the sum of its proper divisors (1051647).

1587201 is a wasteful number, since it uses less digits than its factorization.

1587201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 1587201 is about 1259.8416567172. The cubic root of 1587201 is about 116.6480033638.

The spelling of 1587201 in words is "one million, five hundred eighty-seven thousand, two hundred one".