1541387 has 4 divisors (see below), whose sum is σ = 1552776. Its totient is φ = 1530000.

The previous prime is 1541381. The next prime is 1541389. The reversal of 1541387 is 7831451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1541387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1541381) 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, 5489 + ... + 5762.

It is an arithmetic number, because the mean of its divisors is an integer number (388194).

2^1541387 is an apocalyptic number.

1541387 is a deficient number, since it is larger than the sum of its proper divisors (11389).

1541387 is a wasteful number, since it uses less digits than its factorization.

1541387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11388.

The product of its digits is 3360, while the sum is 29.

The square root of 1541387 is about 1241.5260770519. The cubic root of 1541387 is about 115.5146936323.

Subtracting 1541387 from its reverse (7831451), we obtain a square (6290064 = 2508²).

The spelling of 1541387 in words is "one million, five hundred forty-one thousand, three hundred eighty-seven".