2146645025 has 12 divisors (see below), whose sum is σ = 3042102912. Its totient is φ = 1471985040.

The previous prime is 2146645013. The next prime is 2146645037. The reversal of 2146645025 is 5205466412.

It is an interprime number because it is at equal distance from previous prime (2146645013) and next prime (2146645037).

It is not a de Polignac number, because 2146645025 - 2⁸ = 2146644769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6133097 + ... + 6133446.

It is an arithmetic number, because the mean of its divisors is an integer number (253508576).

Almost surely, 2^2146645025 is an apocalyptic number.

2146645025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2146645025 is a deficient number, since it is larger than the sum of its proper divisors (895457887).

2146645025 is a wasteful number, since it uses less digits than its factorization.

2146645025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12266560 (or 12266555 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 2146645025 is about 46331.9007272527. The cubic root of 2146645025 is about 1289.9911913747.

The spelling of 2146645025 in words is "two billion, one hundred forty-six million, six hundred forty-five thousand, twenty-five".