1142545212 has 18 divisors (see below), whose sum is σ = 2888100488. Its totient is φ = 380848392.

The previous prime is 1142545211. The next prime is 1142545247. The reversal of 1142545212 is 2125452411.

It is a happy number.

1142545212 is a `hidden beast` number, since 114 + 2 + 545 + 2 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1142545212² = 2610819122928249888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142545211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15868648 + ... + 15868719.

Almost surely, 2^1142545212 is an apocalyptic number.

1142545212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142545212 is an abundant number, since it is smaller than the sum of its proper divisors (1745555276).

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

1142545212 is a wasteful number, since it uses less digits than its factorization.

1142545212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31737377 (or 31737372 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1142545212 is about 33801.5563547006. The cubic root of 1142545212 is about 1045.4207876301.

Adding to 1142545212 its reverse (2125452411), we get a palindrome (3267997623).

The spelling of 1142545212 in words is "one billion, one hundred forty-two million, five hundred forty-five thousand, two hundred twelve".