1187015142455 has 8 divisors (see below), whose sum is σ = 1424426202432. Its totient is φ = 949606759648.

The previous prime is 1187015142449. The next prime is 1187015142487. The reversal of 1187015142455 is 5542415107811.

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

It is a cyclic number.

It is not a de Polignac number, because 1187015142455 - 2¹² = 1187015138359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488114 + ... + 1616256.

It is an arithmetic number, because the mean of its divisors is an integer number (178053275304).

Almost surely, 2^{1187015142455} is an apocalyptic number.

1187015142455 is a deficient number, since it is larger than the sum of its proper divisors (237411059977).

1187015142455 is a wasteful number, since it uses less digits than its factorization.

1187015142455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338585.

The product of its (nonzero) digits is 224000, while the sum is 44.

The spelling of 1187015142455 in words is "one trillion, one hundred eighty-seven billion, fifteen million, one hundred forty-two thousand, four hundred fifty-five".