1461931 has 2 divisors, whose sum is σ = 1461932. Its totient is φ = 1461930.

The previous prime is 1461923. The next prime is 1461953. The reversal of 1461931 is 1391641.

It is a weak prime.

It is an emirp because it is prime and its reverse (1391641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1461931 - 2³ = 1461923 is a prime.

It is a super-2 number, since 2×1461931² = 4274484497522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1461896 and 1461905.

It is not a weakly prime, because it can be changed into another prime (1461631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730965 + 730966.

It is an arithmetic number, because the mean of its divisors is an integer number (730966).

2^1461931 is an apocalyptic number.

1461931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461931 is an equidigital number, since it uses as much as digits as its factorization.

1461931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 1461931 is about 1209.1033868119. The cubic root of 1461931 is about 113.4947114693.

The spelling of 1461931 in words is "one million, four hundred sixty-one thousand, nine hundred thirty-one".