1415981 has 16 divisors (see below), whose sum is σ = 1747584. Its totient is φ = 1119744.

The previous prime is 1415977. The next prime is 1415989. The reversal of 1415981 is 1895141.

It is a cyclic number.

It is not a de Polignac number, because 1415981 - 2² = 1415977 is a prime.

It is a super-2 number, since 2×1415981² = 4010004384722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1415989) 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, 8606 + ... + 8768.

It is an arithmetic number, because the mean of its divisors is an integer number (109224).

2^1415981 is an apocalyptic number.

It is an amenable number.

1415981 is a deficient number, since it is larger than the sum of its proper divisors (331603).

1415981 is a wasteful number, since it uses less digits than its factorization.

1415981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260.

The product of its digits is 1440, while the sum is 29.

The square root of 1415981 is about 1189.9499989495. The cubic root of 1415981 is about 112.2929459037.

The spelling of 1415981 in words is "one million, four hundred fifteen thousand, nine hundred eighty-one".