1542487 has 2 divisors, whose sum is σ = 1542488. Its totient is φ = 1542486.

The previous prime is 1542479. The next prime is 1542503. The reversal of 1542487 is 7842451.

It is a weak prime.

It is an emirp because it is prime and its reverse (7842451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1542487 - 2³ = 1542479 is a prime.

It is a super-2 number, since 2×1542487² = 4758532290338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771243 + 771244.

It is an arithmetic number, because the mean of its divisors is an integer number (771244).

2^1542487 is an apocalyptic number.

1542487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542487 is an equidigital number, since it uses as much as digits as its factorization.

1542487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 31.

The square root of 1542487 is about 1241.9690012235. The cubic root of 1542487 is about 115.5421658480.

The spelling of 1542487 in words is "one million, five hundred forty-two thousand, four hundred eighty-seven".