1145542455 has 12 divisors (see below), whose sum is σ = 1985607000. Its totient is φ = 610955952.

The previous prime is 1145542441. The next prime is 1145542457. The reversal of 1145542455 is 5542455411.

1145542455 is a `hidden beast` number, since 114 + 55 + 42 + 455 = 666.

It is not a de Polignac number, because 1145542455 - 2⁸ = 1145542199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145542457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12728205 + ... + 12728294.

It is an arithmetic number, because the mean of its divisors is an integer number (165467250).

Almost surely, 2^1145542455 is an apocalyptic number.

1145542455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145542455 is a deficient number, since it is larger than the sum of its proper divisors (840064545).

1145542455 is a wasteful number, since it uses less digits than its factorization.

1145542455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25456510 (or 25456507 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 1145542455 is about 33845.8631888744. The cubic root of 1145542455 is about 1046.3341414754.

Adding to 1145542455 its reverse (5542455411), we get a palindrome (6687997866).

The spelling of 1145542455 in words is "one billion, one hundred forty-five million, five hundred forty-two thousand, four hundred fifty-five".