1392000961 has 8 divisors (see below), whose sum is σ = 1500005864. Its totient is φ = 1284128640.

The previous prime is 1392000943. The next prime is 1392000979. The reversal of 1392000961 is 1690002931.

It is an interprime number because it is at equal distance from previous prime (1392000943) and next prime (1392000979).

It can be written as a sum of positive squares in 4 ways, for example, as 75690000 + 1316310961 = 8700^2 + 36281^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1392000961 - 2¹⁷ = 1391869889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1392000901) 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, 10770 + ... + 53851.

It is an arithmetic number, because the mean of its divisors is an integer number (187500733).

Almost surely, 2^1392000961 is an apocalyptic number.

1392000961 is the 21541-st octagonal number.

It is an amenable number.

1392000961 is a deficient number, since it is larger than the sum of its proper divisors (108004903).

1392000961 is a wasteful number, since it uses less digits than its factorization.

1392000961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66291.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1392000961 is about 37309.5290911049. The cubic root of 1392000961 is about 1116.5542912781.

The spelling of 1392000961 in words is "one billion, three hundred ninety-two million, nine hundred sixty-one", and thus it is an aban number.