1392134476261 has 8 divisors (see below), whose sum is σ = 1439172365400. Its totient is φ = 1345719605760.

The previous prime is 1392134476217. The next prime is 1392134476279. The reversal of 1392134476261 is 1626744312931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16639452036 + 1375495024225 = 128994^2 + 1172815^2 .

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 1392134476261 - 2³¹ = 1389986992613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392134476861) 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, 155750116 + ... + 155759053.

It is an arithmetic number, because the mean of its divisors is an integer number (179896545675).

Almost surely, 2^{1392134476261} is an apocalyptic number.

It is an amenable number.

1392134476261 is a deficient number, since it is larger than the sum of its proper divisors (47037889139).

1392134476261 is a wasteful number, since it uses less digits than its factorization.

1392134476261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311509319.

The product of its digits is 1306368, while the sum is 49.

The spelling of 1392134476261 in words is "one trillion, three hundred ninety-two billion, one hundred thirty-four million, four hundred seventy-six thousand, two hundred sixty-one".