1956461 has 4 divisors (see below), whose sum is σ = 2106972. Its totient is φ = 1805952.

The previous prime is 1956439. The next prime is 1956481. The reversal of 1956461 is 1646591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1646591 = 29 ⋅56779.

It can be written as a sum of positive squares in 2 ways, for example, as 184900 + 1771561 = 430^2 + 1331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1956461 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75236 + ... + 75261.

It is an arithmetic number, because the mean of its divisors is an integer number (526743).

2^1956461 is an apocalyptic number.

It is an amenable number.

1956461 is a deficient number, since it is larger than the sum of its proper divisors (150511).

1956461 is a wasteful number, since it uses less digits than its factorization.

1956461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150510.

The product of its digits is 6480, while the sum is 32.

The square root of 1956461 is about 1398.7355003717. The cubic root of 1956461 is about 125.0711275193.

The spelling of 1956461 in words is "one million, nine hundred fifty-six thousand, four hundred sixty-one".