1400145225 has 72 divisors (see below), whose sum is σ = 2444819712. Its totient is φ = 706300800.

The previous prime is 1400145191. The next prime is 1400145233. The reversal of 1400145225 is 5225410041.

It is not a de Polignac number, because 1400145225 - 2¹² = 1400141129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1400145195 and 1400145204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8093239 + ... + 8093411.

Almost surely, 2^1400145225 is an apocalyptic number.

1400145225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400145225 is a deficient number, since it is larger than the sum of its proper divisors (1044674487).

1400145225 is a wasteful number, since it uses less digits than its factorization.

1400145225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1400145225 is about 37418.5144681079. The cubic root of 1400145225 is about 1118.7276220777.

Adding to 1400145225 its reverse (5225410041), we get a palindrome (6625555266).

The spelling of 1400145225 in words is "one billion, four hundred million, one hundred forty-five thousand, two hundred twenty-five".