1254541312040 has 16 divisors (see below), whose sum is σ = 2822717952180. Its totient is φ = 501816524800.

The previous prime is 1254541312019. The next prime is 1254541312049. The reversal of 1254541312040 is 402131454521.

It can be written as a sum of positive squares in 2 ways, for example, as 1249964248324 + 4577063716 = 1118018^2 + 67654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1254541311988 and 1254541312006.

It is not an unprimeable number, because it can be changed into a prime (1254541312049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15681766361 + ... + 15681766440.

Almost surely, 2^{1254541312040} is an apocalyptic number.

1254541312040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254541312040 is an abundant number, since it is smaller than the sum of its proper divisors (1568176640140).

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

1254541312040 is a wasteful number, since it uses less digits than its factorization.

1254541312040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31363532812 (or 31363532808 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 1254541312040 its reverse (402131454521), we get a palindrome (1656672766561).

The spelling of 1254541312040 in words is "one trillion, two hundred fifty-four billion, five hundred forty-one million, three hundred twelve thousand, forty".