1245254149 has 8 divisors (see below), whose sum is σ = 1260940320. Its totient is φ = 1229634000.

The previous prime is 1245254137. The next prime is 1245254189. The reversal of 1245254149 is 9414525421.

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

It is a cyclic number.

It is not a de Polignac number, because 1245254149 - 2¹⁹ = 1244729861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245254189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22014 + ... + 54544.

It is an arithmetic number, because the mean of its divisors is an integer number (157617540).

Almost surely, 2^1245254149 is an apocalyptic number.

It is an amenable number.

1245254149 is a deficient number, since it is larger than the sum of its proper divisors (15686171).

1245254149 is a wasteful number, since it uses less digits than its factorization.

1245254149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33011.

The product of its digits is 57600, while the sum is 37.

The square root of 1245254149 is about 35288.1587646621. The cubic root of 1245254149 is about 1075.8523325797.

The spelling of 1245254149 in words is "one billion, two hundred forty-five million, two hundred fifty-four thousand, one hundred forty-nine".