1498981 has 16 divisors (see below), whose sum is σ = 1751040. Its totient is φ = 1270080.

The previous prime is 1498969. The next prime is 1498993. The reversal of 1498981 is 1898941.

It is an interprime number because it is at equal distance from previous prime (1498969) and next prime (1498993).

It is a 4-Lehmer number, since φ(1498981) divides (1498981-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 1498981 - 2¹³ = 1490789 is a prime.

It is a super-2 number, since 2×1498981² = 4493888076722, which contains 22 as substring.

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

It is a deceptive number, since it divides R_1498980.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1498921) 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, 11740 + ... + 11866.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2^1498981 is an apocalyptic number.

1498981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1498981 is a deficient number, since it is larger than the sum of its proper divisors (252059).

1498981 is a wasteful number, since it uses less digits than its factorization.

1498981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204.

The product of its digits is 20736, while the sum is 40.

The square root of 1498981 is about 1224.3287957081. The cubic root of 1498981 is about 114.4454969653.

Subtracting from 1498981 its sum of digits (40), we obtain a palindrome (1498941).

The spelling of 1498981 in words is "one million, four hundred ninety-eight thousand, nine hundred eighty-one".