1461881 has 8 divisors (see below), whose sum is σ = 1563624. Its totient is φ = 1361920.

The previous prime is 1461877. The next prime is 1461883. The reversal of 1461881 is 1881641.

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 1428025 = 184^2 + 1195^2 .

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 1461881 - 2² = 1461877 is a prime.

It is a super-2 number, since 2×1461881² = 4274192116322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461883) 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, 1541 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (195453).

2^1461881 is an apocalyptic number.

It is an amenable number.

1461881 is a deficient number, since it is larger than the sum of its proper divisors (101743).

1461881 is a wasteful number, since it uses less digits than its factorization.

1461881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891.

The product of its digits is 1536, while the sum is 29.

The square root of 1461881 is about 1209.0827101568. The cubic root of 1461881 is about 113.4934175641.

The spelling of 1461881 in words is "one million, four hundred sixty-one thousand, eight hundred eighty-one".