1142121510 has 48 divisors (see below), whose sum is σ = 2995821504. Its totient is φ = 301867776.

The previous prime is 1142121503. The next prime is 1142121527. The reversal of 1142121510 is 151212411.

1142121510 is a `hidden beast` number, since 1 + 142 + 12 + 1 + 510 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45982 + ... + 66321.

It is an arithmetic number, because the mean of its divisors is an integer number (62412948).

Almost surely, 2^1142121510 is an apocalyptic number.

1142121510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142121510 is an abundant number, since it is smaller than the sum of its proper divisors (1853699994).

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

1142121510 is a wasteful number, since it uses less digits than its factorization.

1142121510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112429 (or 112426 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1142121510 is about 33795.2882810607. The cubic root of 1142121510 is about 1045.2915435415.

Adding to 1142121510 its reverse (151212411), we get a palindrome (1293333921).

Subtracting from 1142121510 its reverse (151212411), we obtain a palindrome (990909099).

The spelling of 1142121510 in words is "one billion, one hundred forty-two million, one hundred twenty-one thousand, five hundred ten".