1142534551 has 4 divisors (see below), whose sum is σ = 1153212552. Its totient is φ = 1131856552.

The previous prime is 1142534539. The next prime is 1142534573. The reversal of 1142534551 is 1554352411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1554352411 = 29 ⋅53598359.

It is a cyclic number.

It is not a de Polignac number, because 1142534551 - 2⁷ = 1142534423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142534501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5338840 + ... + 5339053.

It is an arithmetic number, because the mean of its divisors is an integer number (288303138).

Almost surely, 2^1142534551 is an apocalyptic number.

1142534551 is a deficient number, since it is larger than the sum of its proper divisors (10678001).

1142534551 is a wasteful number, since it uses less digits than its factorization.

1142534551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10678000.

The product of its digits is 12000, while the sum is 31.

The square root of 1142534551 is about 33801.3986544936. The cubic root of 1142534551 is about 1045.4175360402.

Adding to 1142534551 its reverse (1554352411), we get a palindrome (2696886962).

The spelling of 1142534551 in words is "one billion, one hundred forty-two million, five hundred thirty-four thousand, five hundred fifty-one".