1254987 has 16 divisors (see below), whose sum is σ = 1896480. Its totient is φ = 819936.

The previous prime is 1254983. The next prime is 1254997. The reversal of 1254987 is 7894521.

It is not a de Polignac number, because 1254987 - 2² = 1254983 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (1254983) 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, 993 + ... + 1869.

It is an arithmetic number, because the mean of its divisors is an integer number (118530).

2^1254987 is an apocalyptic number.

1254987 is a deficient number, since it is larger than the sum of its proper divisors (641493).

1254987 is an equidigital number, since it uses as much as digits as its factorization.

1254987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 933 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1254987 is about 1120.2620229214. The cubic root of 1254987 is about 107.8647999559.

The spelling of 1254987 in words is "one million, two hundred fifty-four thousand, nine hundred eighty-seven".