1235215145 has 8 divisors (see below), whose sum is σ = 1490019840. Its totient is φ = 982997680.

The previous prime is 1235215127. The next prime is 1235215151. The reversal of 1235215145 is 5415125321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1235215145 - 2²² = 1231020841 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 7 ways as a sum of consecutive naturals, for example, 645755 + ... + 647664.

It is an arithmetic number, because the mean of its divisors is an integer number (186252480).

Almost surely, 2^1235215145 is an apocalyptic number.

It is an amenable number.

1235215145 is a deficient number, since it is larger than the sum of its proper divisors (254804695).

1235215145 is a wasteful number, since it uses less digits than its factorization.

1235215145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293615.

The product of its digits is 6000, while the sum is 29.

The square root of 1235215145 is about 35145.6276796987. The cubic root of 1235215145 is about 1072.9534222383.

The spelling of 1235215145 in words is "one billion, two hundred thirty-five million, two hundred fifteen thousand, one hundred forty-five".