1325820842 has 8 divisors (see below), whose sum is σ = 1989074532. Its totient is φ = 662796000.

The previous prime is 1325820833. The next prime is 1325820851. The reversal of 1325820842 is 2480285231.

It is an interprime number because it is at equal distance from previous prime (1325820833) and next prime (1325820851).

It can be written as a sum of positive squares in 2 ways, for example, as 1324159321 + 1661521 = 36389^2 + 1289^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41909 + ... + 66392.

Almost surely, 2^1325820842 is an apocalyptic number.

1325820842 is a deficient number, since it is larger than the sum of its proper divisors (663253690).

1325820842 is a wasteful number, since it uses less digits than its factorization.

1325820842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114424.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 1325820842 is about 36411.8228327009. The cubic root of 1325820842 is about 1098.5713801005.

The spelling of 1325820842 in words is "one billion, three hundred twenty-five million, eight hundred twenty thousand, eight hundred forty-two".