1405425122 has 8 divisors (see below), whose sum is σ = 2232145836. Its totient is φ = 661376512.

The previous prime is 1405425103. The next prime is 1405425157. The reversal of 1405425122 is 2215245041.

It is a Cunningham number, because it is equal to 37489²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 1405425121 + 1 = 37489^2 + 1^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1405425091 and 1405425100.

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, 20667983 + ... + 20668050.

Almost surely, 2^1405425122 is an apocalyptic number.

1405425122 is a deficient number, since it is larger than the sum of its proper divisors (826720714).

1405425122 is a wasteful number, since it uses less digits than its factorization.

1405425122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41336052.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1405425122 is about 37489.0000133372. Note that the first 4 decimals coincide. The cubic root of 1405425122 is about 1120.1320852937.

The spelling of 1405425122 in words is "one billion, four hundred five million, four hundred twenty-five thousand, one hundred twenty-two".