1961375 has 32 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 1344000.

The previous prime is 1961363. The next prime is 1961381. The reversal of 1961375 is 5731691.

1961375 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 1961375 - 2¹⁰ = 1960351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27590 + ... + 27660.

It is an arithmetic number, because the mean of its divisors is an integer number (88452).

2^1961375 is an apocalyptic number.

1961375 is a deficient number, since it is larger than the sum of its proper divisors (869089).

1961375 is a wasteful number, since it uses less digits than its factorization.

1961375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 106 counting only the distinct ones).

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

The square root of 1961375 is about 1400.4909853334. The cubic root of 1961375 is about 125.1757527719.

The spelling of 1961375 in words is "one million, nine hundred sixty-one thousand, three hundred seventy-five".