1961031 has 8 divisors (see below), whose sum is σ = 2623600. Its totient is φ = 1302912.

The previous prime is 1961027. The next prime is 1961033. The reversal of 1961031 is 1301691.

It is a happy number.

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

It is not a de Polignac number, because 1961031 - 2² = 1961027 is a prime.

It is a super-2 number, since 2×1961031² = 7691285165922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1960989 and 1961007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111 + ... + 1983.

It is an arithmetic number, because the mean of its divisors is an integer number (327950).

2^1961031 is an apocalyptic number.

1961031 is a deficient number, since it is larger than the sum of its proper divisors (662569).

1961031 is a wasteful number, since it uses less digits than its factorization.

1961031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1961031 is about 1400.3681658764. The cubic root of 1961031 is about 125.1684342706.

The spelling of 1961031 in words is "one million, nine hundred sixty-one thousand, thirty-one".