1142771454 has 48 divisors (see below), whose sum is σ = 2843268480. Its totient is φ = 328067280.

The previous prime is 1142771437. The next prime is 1142771459. The reversal of 1142771454 is 4541772411.

1142771454 is a `hidden beast` number, since 114 + 27 + 71 + 454 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142771459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148122 + ... + 155645.

It is an arithmetic number, because the mean of its divisors is an integer number (59234760).

Almost surely, 2^1142771454 is an apocalyptic number.

1142771454 is an abundant number, since it is smaller than the sum of its proper divisors (1700497026).

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

1142771454 is a wasteful number, since it uses less digits than its factorization.

1142771454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303805 (or 303802 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 1142771454 is about 33804.9028100955. The cubic root of 1142771454 is about 1045.4897863526.

The spelling of 1142771454 in words is "one billion, one hundred forty-two million, seven hundred seventy-one thousand, four hundred fifty-four".