1254045140 has 12 divisors (see below), whose sum is σ = 2633494836. Its totient is φ = 501618048.

The previous prime is 1254045127. The next prime is 1254045151. The reversal of 1254045140 is 415404521.

It can be written as a sum of positive squares in 2 ways, for example, as 958273936 + 295771204 = 30956^2 + 17198^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31351109 + ... + 31351148.

It is an arithmetic number, because the mean of its divisors is an integer number (219457903).

Almost surely, 2^1254045140 is an apocalyptic number.

1254045140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254045140 is an abundant number, since it is smaller than the sum of its proper divisors (1379449696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1254045140 is a wasteful number, since it uses less digits than its factorization.

1254045140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62702266 (or 62702264 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1254045140 is about 35412.4997705612. The cubic root of 1254045140 is about 1078.3780924709.

Adding to 1254045140 its reverse (415404521), we get a palindrome (1669449661).

The spelling of 1254045140 in words is "one billion, two hundred fifty-four million, forty-five thousand, one hundred forty".