1245242025 has 48 divisors (see below), whose sum is σ = 2292760000. Its totient is φ = 662618880.

The previous prime is 1245241979. The next prime is 1245242071. The reversal of 1245242025 is 5202425421.

1245242025 is a `hidden beast` number, since 1 + 2 + 452 + 4 + 202 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1245241979) and next prime (1245242071).

It is not a de Polignac number, because 1245242025 - 2⁷ = 1245241897 is a prime.

It is a super-2 number, since 2×1245242025² = 3101255401652201250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1245242025.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334977 + ... + 338673.

Almost surely, 2^1245242025 is an apocalyptic number.

1245242025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245242025 is a deficient number, since it is larger than the sum of its proper divisors (1047517975).

1245242025 is a wasteful number, since it uses less digits than its factorization.

1245242025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215 (or 4204 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1245242025 is about 35287.9869785739. The cubic root of 1245242025 is about 1075.8488410098.

Adding to 1245242025 its reverse (5202425421), we get a palindrome (6447667446).

The spelling of 1245242025 in words is "one billion, two hundred forty-five million, two hundred forty-two thousand, twenty-five".