1250745133 has 8 divisors (see below), whose sum is σ = 1376525376. Its totient is φ = 1126977600.

The previous prime is 1250745113. The next prime is 1250745157. The reversal of 1250745133 is 3315470521.

It is a happy number.

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 1250745133 - 2²⁹ = 713874221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1250745095 and 1250745104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250745103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501873 + ... + 504358.

It is an arithmetic number, because the mean of its divisors is an integer number (172065672).

Almost surely, 2^1250745133 is an apocalyptic number.

It is an amenable number.

1250745133 is a deficient number, since it is larger than the sum of its proper divisors (125780243).

1250745133 is a wasteful number, since it uses less digits than its factorization.

1250745133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006355.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 1250745133 is about 35365.8752613307. The cubic root of 1250745133 is about 1077.4313478833.

The spelling of 1250745133 in words is "one billion, two hundred fifty million, seven hundred forty-five thousand, one hundred thirty-three".