1250645045 has 16 divisors (see below), whose sum is σ = 1620514560. Its totient is φ = 921098304.

The previous prime is 1250645041. The next prime is 1250645057. The reversal of 1250645045 is 5405460521.

It is a cyclic number.

It is not a de Polignac number, because 1250645045 - 2² = 1250645041 is a prime.

It is a super-2 number, since 2×1250645045² = 3128226057166104050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250645041) 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, 749 + ... + 50018.

It is an arithmetic number, because the mean of its divisors is an integer number (101282160).

Almost surely, 2^1250645045 is an apocalyptic number.

It is an amenable number.

1250645045 is a deficient number, since it is larger than the sum of its proper divisors (369869515).

1250645045 is a wasteful number, since it uses less digits than its factorization.

1250645045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51164.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1250645045 is about 35364.4601966437. The cubic root of 1250645045 is about 1077.4026074622.

The spelling of 1250645045 in words is "one billion, two hundred fifty million, six hundred forty-five thousand, forty-five".