1250145645 has 32 divisors (see below), whose sum is σ = 2289606912. Its totient is φ = 570588672.

The previous prime is 1250145629. The next prime is 1250145667. The reversal of 1250145645 is 5465410521.

It is not a de Polignac number, because 1250145645 - 2⁴ = 1250145629 is a prime.

It is a super-3 number, since 3×1250145645³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59449 + ... + 77681.

It is an arithmetic number, because the mean of its divisors is an integer number (71550216).

Almost surely, 2^1250145645 is an apocalyptic number.

1250145645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1250145645 is a deficient number, since it is larger than the sum of its proper divisors (1039461267).

1250145645 is a wasteful number, since it uses less digits than its factorization.

1250145645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18901.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 1250145645 is about 35357.3987306759. The cubic root of 1250145645 is about 1077.2591810765.

The spelling of 1250145645 in words is "one billion, two hundred fifty million, one hundred forty-five thousand, six hundred forty-five".