1573961 has 2 divisors, whose sum is σ = 1573962. Its totient is φ = 1573960.

The previous prime is 1573939. The next prime is 1573969. The reversal of 1573961 is 1693751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1308736 + 265225 = 1144^2 + 515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1573961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1573969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786980 + 786981.

It is an arithmetic number, because the mean of its divisors is an integer number (786981).

2^1573961 is an apocalyptic number.

It is an amenable number.

1573961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1573961 is an equidigital number, since it uses as much as digits as its factorization.

1573961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 32.

The square root of 1573961 is about 1254.5760240017. The cubic root of 1573961 is about 116.3227486221.

The spelling of 1573961 in words is "one million, five hundred seventy-three thousand, nine hundred sixty-one".