1403243025 has 12 divisors (see below), whose sum is σ = 2320028592. Its totient is φ = 748396240.

The previous prime is 1403243021. The next prime is 1403243029. The reversal of 1403243025 is 5203423041.

It is an interprime number because it is at equal distance from previous prime (1403243021) and next prime (1403243029).

It is not a de Polignac number, because 1403243025 - 2² = 1403243021 is a prime.

It is a super-2 number, since 2×1403243025² = 3938181974422301250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1403242986 and 1403243004.

It is not an unprimeable number, because it can be changed into a prime (1403243021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9354879 + ... + 9355028.

It is an arithmetic number, because the mean of its divisors is an integer number (193335716).

Almost surely, 2^1403243025 is an apocalyptic number.

1403243025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1403243025 is a deficient number, since it is larger than the sum of its proper divisors (916785567).

1403243025 is a wasteful number, since it uses less digits than its factorization.

1403243025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18709920 (or 18709915 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1403243025 is about 37459.8855444060. The cubic root of 1403243025 is about 1119.5520702955.

Adding to 1403243025 its reverse (5203423041), we get a palindrome (6606666066).

The spelling of 1403243025 in words is "one billion, four hundred three million, two hundred forty-three thousand, twenty-five".