1535961 has 8 divisors (see below), whose sum is σ = 2340544. Its totient is φ = 877680.

The previous prime is 1535959. The next prime is 1535969. The reversal of 1535961 is 1695351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1535961 - 2¹ = 1535959 is a prime.

It is a Duffinian number.

It is a Curzon number.

1535961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1535969) 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, 36550 + ... + 36591.

It is an arithmetic number, because the mean of its divisors is an integer number (292568).

2^1535961 is an apocalyptic number.

It is an amenable number.

1535961 is a deficient number, since it is larger than the sum of its proper divisors (804583).

1535961 is an equidigital number, since it uses as much as digits as its factorization.

1535961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73151.

The product of its digits is 4050, while the sum is 30.

The square root of 1535961 is about 1239.3389366917. The cubic root of 1535961 is about 115.3789890932.

The spelling of 1535961 in words is "one million, five hundred thirty-five thousand, nine hundred sixty-one".