1469981 has 8 divisors (see below), whose sum is σ = 1534680. Its totient is φ = 1406272.

The previous prime is 1469977. The next prime is 1469983. The reversal of 1469981 is 1899641.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 931225 + 538756 = 965^2 + 734^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1469981 - 2² = 1469977 is a prime.

It is a super-2 number, since 2×1469981² = 4321688280722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1469983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4871 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (191835).

2^1469981 is an apocalyptic number.

It is an amenable number.

1469981 is a deficient number, since it is larger than the sum of its proper divisors (64699).

1469981 is a wasteful number, since it uses less digits than its factorization.

1469981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its digits is 15552, while the sum is 38.

The square root of 1469981 is about 1212.4277298050. The cubic root of 1469981 is about 113.7026466345.

The spelling of 1469981 in words is "one million, four hundred sixty-nine thousand, nine hundred eighty-one".