1402212125 has 32 divisors (see below), whose sum is σ = 1811193696. Its totient is φ = 1082995200.

The previous prime is 1402212121. The next prime is 1402212127. The reversal of 1402212125 is 5212122041.

It can be written as a sum of positive squares in 16 ways, for example, as 189640441 + 1212571684 = 13771^2 + 34822^2 .

It is not a de Polignac number, because 1402212125 - 2² = 1402212121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1402212097 and 1402212106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402212121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632519 + ... + 634731.

It is an arithmetic number, because the mean of its divisors is an integer number (56599803).

Almost surely, 2^1402212125 is an apocalyptic number.

It is an amenable number.

1402212125 is a deficient number, since it is larger than the sum of its proper divisors (408981571).

1402212125 is a wasteful number, since it uses less digits than its factorization.

1402212125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1402212125 is about 37446.1229635326. The cubic root of 1402212125 is about 1119.2778414895.

Adding to 1402212125 its reverse (5212122041), we get a palindrome (6614334166).

The spelling of 1402212125 in words is "one billion, four hundred two million, two hundred twelve thousand, one hundred twenty-five".