1405125224 has 16 divisors (see below), whose sum is σ = 2635031520. Its totient is φ = 702450160.

The previous prime is 1405125199. The next prime is 1405125229. The reversal of 1405125224 is 4225215041.

It is a Cunningham number, because it is equal to 37485²-1.

It is a junction number, because it is equal to n+sod(n) for n = 1405125193 and 1405125202.

It is not an unprimeable number, because it can be changed into a prime (1405125229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65597 + ... + 84339.

It is an arithmetic number, because the mean of its divisors is an integer number (164689470).

Almost surely, 2^1405125224 is an apocalyptic number.

It is an amenable number.

1405125224 is a deficient number, since it is larger than the sum of its proper divisors (1229906296).

1405125224 is a wasteful number, since it uses less digits than its factorization.

1405125224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28120 (or 28116 counting only the distinct ones).

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

The square root of 1405125224 is about 37484.9999866613. Note that the first 4 decimals coincide. The cubic root of 1405125224 is about 1120.0524061363.

The spelling of 1405125224 in words is "one billion, four hundred five million, one hundred twenty-five thousand, two hundred twenty-four".