1961407283 has 8 divisors (see below), whose sum is σ = 2265582960. Its totient is φ = 1678209280.

The previous prime is 1961407277. The next prime is 1961407291. The reversal of 1961407283 is 3827041691.

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

It is not a de Polignac number, because 1961407283 - 2²² = 1957212979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1961407283.

It is not an unprimeable number, because it can be changed into a prime (1961407223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5244218 + ... + 5244591.

It is an arithmetic number, because the mean of its divisors is an integer number (283197870).

Almost surely, 2^1961407283 is an apocalyptic number.

1961407283 is a deficient number, since it is larger than the sum of its proper divisors (304175677).

1961407283 is a wasteful number, since it uses less digits than its factorization.

1961407283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10488837.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1961407283 is about 44287.7780318679. The cubic root of 1961407283 is about 1251.7643953953.

The spelling of 1961407283 in words is "one billion, nine hundred sixty-one million, four hundred seven thousand, two hundred eighty-three".