1254117312 has 84 divisors (see below), whose sum is σ = 4108242736. Its totient is φ = 358318080.

The previous prime is 1254117259. The next prime is 1254117349. The reversal of 1254117312 is 2137114521.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151489 + ... + 159552.

Almost surely, 2^1254117312 is an apocalyptic number.

1254117312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1254117312 is an abundant number, since it is smaller than the sum of its proper divisors (2854125424).

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

1254117312 is a wasteful number, since it uses less digits than its factorization.

1254117312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311066 (or 311053 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1254117312 is about 35413.5187746149. The cubic root of 1254117312 is about 1078.3987794484.

The spelling of 1254117312 in words is "one billion, two hundred fifty-four million, one hundred seventeen thousand, three hundred twelve".