1142305154 has 16 divisors (see below), whose sum is σ = 1742864640. Its totient is φ = 561364560.

The previous prime is 1142305139. The next prime is 1142305159. The reversal of 1142305154 is 4515032411.

It is a super-2 number, since 2×1142305154² = 2609722129709927432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142305159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211937 + ... + 217259.

It is an arithmetic number, because the mean of its divisors is an integer number (108929040).

Almost surely, 2^1142305154 is an apocalyptic number.

1142305154 is a deficient number, since it is larger than the sum of its proper divisors (600559486).

1142305154 is a wasteful number, since it uses less digits than its factorization.

1142305154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1142305154 is about 33798.0051778208. The cubic root of 1142305154 is about 1045.3475653777.

Adding to 1142305154 its reverse (4515032411), we get a palindrome (5657337565).

The spelling of 1142305154 in words is "one billion, one hundred forty-two million, three hundred five thousand, one hundred fifty-four".