1141456987 has 8 divisors (see below), whose sum is σ = 1245945600. Its totient is φ = 1037088360.

The previous prime is 1141456961. The next prime is 1141456991. The reversal of 1141456987 is 7896541411.

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

It is not a de Polignac number, because 1141456987 - 2¹¹ = 1141454939 is a prime.

It is a super-2 number, since 2×1141456987² = 2605848106342236338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141456937) 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, 9487 + ... + 48712.

It is an arithmetic number, because the mean of its divisors is an integer number (155743200).

Almost surely, 2^1141456987 is an apocalyptic number.

1141456987 is a deficient number, since it is larger than the sum of its proper divisors (104488613).

1141456987 is a wasteful number, since it uses less digits than its factorization.

1141456987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59993.

The product of its digits is 241920, while the sum is 46.

The square root of 1141456987 is about 33785.4552581433. The cubic root of 1141456987 is about 1045.0887761397.

The spelling of 1141456987 in words is "one billion, one hundred forty-one million, four hundred fifty-six thousand, nine hundred eighty-seven".