1250542345 has 16 divisors (see below), whose sum is σ = 1617697872. Its totient is φ = 922556160.

The previous prime is 1250542339. The next prime is 1250542373. The reversal of 1250542345 is 5432450521.

It can be written as a sum of positive squares in 8 ways, for example, as 64979721 + 1185562624 = 8061^2 + 34432^2 .

It is not a de Polignac number, because 1250542345 - 2⁵ = 1250542313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59899 + ... + 78031.

It is an arithmetic number, because the mean of its divisors is an integer number (101106117).

Almost surely, 2^1250542345 is an apocalyptic number.

It is an amenable number.

1250542345 is a deficient number, since it is larger than the sum of its proper divisors (367155527).

1250542345 is a wasteful number, since it uses less digits than its factorization.

1250542345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19212.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1250542345 is about 35363.0081441045. The cubic root of 1250542345 is about 1077.3731154074.

Adding to 1250542345 its reverse (5432450521), we get a palindrome (6682992866).

The spelling of 1250542345 in words is "one billion, two hundred fifty million, five hundred forty-two thousand, three hundred forty-five".