1187240463 has 16 divisors (see below), whose sum is σ = 1759505760. Its totient is φ = 791209728.

The previous prime is 1187240447. The next prime is 1187240501. The reversal of 1187240463 is 3640427811.

It is not a de Polignac number, because 1187240463 - 2⁴ = 1187240447 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187240063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91581 + ... + 103737.

It is an arithmetic number, because the mean of its divisors is an integer number (109969110).

Almost surely, 2^1187240463 is an apocalyptic number.

1187240463 is a deficient number, since it is larger than the sum of its proper divisors (572265297).

1187240463 is a wasteful number, since it uses less digits than its factorization.

1187240463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15783 (or 15777 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1187240463 is about 34456.3559158539. The cubic root of 1187240463 is about 1058.8787428675.

The spelling of 1187240463 in words is "one billion, one hundred eighty-seven million, two hundred forty thousand, four hundred sixty-three".