1481749 has 2 divisors, whose sum is σ = 1481750.
Its totient is φ = 1481748.
The previous prime is 1481747. The next prime is 1481759. The reversal of 1481749 is 9471841.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1380625 + 101124 = 1175^2 + 318^2
It is an emirp because it is prime and its reverse (9471841) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1481749 - 21 = 1481747 is a prime.
Together with 1481747, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1481743) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740874 + 740875.
It is an arithmetic number, because the mean of its divisors is an integer number (740875).
21481749 is an apocalyptic number.
It is an amenable number.
1481749 is a deficient number, since it is larger than the sum of its proper divisors (1).
1481749 is an equidigital number, since it uses as much as digits as its factorization.
1481749 is an evil number, because the sum of its binary digits is even.
The product of its digits is 8064, while the sum is 34.
The square root of 1481749 is about 1217.2711283851.
The cubic root of 1481749 is about 114.0052577856.
It can be divided in two parts, 148 and 1749, that multiplied together give a palindrome (258852).
The spelling of 1481749 in words is "one million, four hundred eighty-one thousand, seven hundred forty-nine".