1423140225 has 24 divisors (see below), whose sum is σ = 2533921152. Its totient is φ = 700622400.

The previous prime is 1423140209. The next prime is 1423140247. The reversal of 1423140225 is 5220413241.

It is not a de Polignac number, because 1423140225 - 2⁴ = 1423140209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1423140195 and 1423140204.

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, 728841 + ... + 730790.

It is an arithmetic number, because the mean of its divisors is an integer number (105580048).

Almost surely, 2^1423140225 is an apocalyptic number.

1423140225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1423140225 is a deficient number, since it is larger than the sum of its proper divisors (1110780927).

1423140225 is a wasteful number, since it uses less digits than its factorization.

1423140225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459657 (or 1459652 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1423140225 is about 37724.5308121917. The cubic root of 1423140225 is about 1124.8187955062.

Adding to 1423140225 its reverse (5220413241), we get a palindrome (6643553466).

The spelling of 1423140225 in words is "one billion, four hundred twenty-three million, one hundred forty thousand, two hundred twenty-five".