1142545151 has 4 divisors (see below), whose sum is σ = 1246412904. Its totient is φ = 1038677400.

The previous prime is 1142545121. The next prime is 1142545153. The reversal of 1142545151 is 1515452411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1142545151 - 2⁶ = 1142545087 is a prime.

It is a super-2 number, since 2×1142545151² = 2610818844147225602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142545153) 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, 51933860 + ... + 51933881.

It is an arithmetic number, because the mean of its divisors is an integer number (311603226).

Almost surely, 2^1142545151 is an apocalyptic number.

1142545151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1142545151 is a deficient number, since it is larger than the sum of its proper divisors (103867753).

1142545151 is a wasteful number, since it uses less digits than its factorization.

1142545151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103867752.

The product of its digits is 4000, while the sum is 29.

The square root of 1142545151 is about 33801.5554523753. Note that the first 3 decimals coincide. The cubic root of 1142545151 is about 1045.4207690253.

Adding to 1142545151 its reverse (1515452411), we get a palindrome (2657997562).

The spelling of 1142545151 in words is "one billion, one hundred forty-two million, five hundred forty-five thousand, one hundred fifty-one".