1400165625 has 24 divisors (see below), whose sum is σ = 2333475648. Its totient is φ = 746750000.

The previous prime is 1400165603. The next prime is 1400165633. The reversal of 1400165625 is 5265610041.

It is not a de Polignac number, because 1400165625 - 2⁵ = 1400165593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1400165592 and 1400165601.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65301 + ... + 84050.

It is an arithmetic number, because the mean of its divisors is an integer number (97228152).

Almost surely, 2^1400165625 is an apocalyptic number.

1400165625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400165625 is a deficient number, since it is larger than the sum of its proper divisors (933310023).

1400165625 is an frugal number, since it uses more digits than its factorization.

1400165625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149379 (or 149359 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1400165625 is about 37418.7870594438. The cubic root of 1400165625 is about 1118.7330553076.

Adding to 1400165625 its reverse (5265610041), we get a palindrome (6665775666).

The spelling of 1400165625 in words is "one billion, four hundred million, one hundred sixty-five thousand, six hundred twenty-five".