4245129 has 20 divisors (see below), whose sum is σ = 7248384. Its totient is φ = 2425464.

The previous prime is 4245119. The next prime is 4245149. The reversal of 4245129 is 9215424.

It is not a de Polignac number, because 4245129 - 2¹³ = 4236937 is a prime.

It is a super-2 number, since 2×4245129² = 36042240453282, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4245119) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3177 + ... + 4310.

Almost surely, 2^4245129 is an apocalyptic number.

It is an amenable number.

4245129 is a deficient number, since it is larger than the sum of its proper divisors (3003255).

4245129 is an equidigital number, since it uses as much as digits as its factorization.

4245129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7506 (or 7497 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 4245129 is about 2060.3710830819. The cubic root of 4245129 is about 161.9186834695.

The spelling of 4245129 in words is "four million, two hundred forty-five thousand, one hundred twenty-nine".