1291540723214 has 8 divisors (see below), whose sum is σ = 2214069811248. Its totient is φ = 553517452800.

The previous prime is 1291540723199. The next prime is 1291540723229. The reversal of 1291540723214 is 4123270451921.

It is an interprime number because it is at equal distance from previous prime (1291540723199) and next prime (1291540723229).

It is a sphenic number, since it is the product of 3 distinct primes.

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, 46126454387 + ... + 46126454414.

It is an arithmetic number, because the mean of its divisors is an integer number (276758726406).

Almost surely, 2^{1291540723214} is an apocalyptic number.

1291540723214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1291540723214 is a deficient number, since it is larger than the sum of its proper divisors (922529088034).

1291540723214 is an equidigital number, since it uses as much as digits as its factorization.

1291540723214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92252908810.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 1291540723214 in words is "one trillion, two hundred ninety-one billion, five hundred forty million, seven hundred twenty-three thousand, two hundred fourteen".