1250457135 has 16 divisors (see below), whose sum is σ = 2003260896. Its totient is φ = 666067328.

The previous prime is 1250457133. The next prime is 1250457139. The reversal of 1250457135 is 5317540521.

It is a cyclic number.

It is not a de Polignac number, because 1250457135 - 2¹ = 1250457133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1250457096 and 1250457105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250457133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40344 + ... + 64253.

It is an arithmetic number, because the mean of its divisors is an integer number (125203806).

Almost surely, 2^1250457135 is an apocalyptic number.

1250457135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1250457135 is a deficient number, since it is larger than the sum of its proper divisors (752803761).

1250457135 is a wasteful number, since it uses less digits than its factorization.

1250457135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105402.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1250457135 is about 35361.8033335406. The cubic root of 1250457135 is about 1077.3486446784.

Adding to 1250457135 its reverse (5317540521), we get a palindrome (6567997656).

The spelling of 1250457135 in words is "one billion, two hundred fifty million, four hundred fifty-seven thousand, one hundred thirty-five".