1245420235 has 16 divisors (see below), whose sum is σ = 1528450560. Its totient is φ = 973847680.

The previous prime is 1245420217. The next prime is 1245420247. The reversal of 1245420235 is 5320245421.

It is not a de Polignac number, because 1245420235 - 2¹³ = 1245412043 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62550 + ... + 80020.

It is an arithmetic number, because the mean of its divisors is an integer number (95528160).

Almost surely, 2^1245420235 is an apocalyptic number.

1245420235 is a deficient number, since it is larger than the sum of its proper divisors (283030325).

1245420235 is a wasteful number, since it uses less digits than its factorization.

1245420235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17798.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1245420235 is about 35290.5119685164. The cubic root of 1245420235 is about 1075.9001611207.

Adding to 1245420235 its reverse (5320245421), we get a palindrome (6565665656).

The spelling of 1245420235 in words is "one billion, two hundred forty-five million, four hundred twenty thousand, two hundred thirty-five".