1154712251240 has 32 divisors (see below), whose sum is σ = 2600359925760. Its totient is φ = 461483592000.

The previous prime is 1154712251239. The next prime is 1154712251243. The reversal of 1154712251240 is 421522174511.

It is a self number, because there is not a number n which added to its sum of digits gives 1154712251240.

It is not an unprimeable number, because it can be changed into a prime (1154712251243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12494276 + ... + 12586355.

It is an arithmetic number, because the mean of its divisors is an integer number (81261247680).

Almost surely, 2^{1154712251240} is an apocalyptic number.

1154712251240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154712251240 is an abundant number, since it is smaller than the sum of its proper divisors (1445647674520).

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

1154712251240 is a wasteful number, since it uses less digits than its factorization.

1154712251240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25081793 (or 25081789 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The spelling of 1154712251240 in words is "one trillion, one hundred fifty-four billion, seven hundred twelve million, two hundred fifty-one thousand, two hundred forty".