1461405215 has 16 divisors (see below), whose sum is σ = 1769872896. Its totient is φ = 1158362400.

The previous prime is 1461405203. The next prime is 1461405223. The reversal of 1461405215 is 5125041641.

It is not a de Polignac number, because 1461405215 - 2²⁸ = 1192969759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537710 + ... + 540420.

It is an arithmetic number, because the mean of its divisors is an integer number (110617056).

Almost surely, 2^1461405215 is an apocalyptic number.

1461405215 is a deficient number, since it is larger than the sum of its proper divisors (308467681).

1461405215 is a wasteful number, since it uses less digits than its factorization.

1461405215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1461405215 is about 38228.3300053769. The cubic root of 1461405215 is about 1134.8110367428.

Adding to 1461405215 its reverse (5125041641), we get a palindrome (6586446856).

The spelling of 1461405215 in words is "one billion, four hundred sixty-one million, four hundred five thousand, two hundred fifteen".