1142251545 has 16 divisors (see below), whose sum is σ = 1828518912. Its totient is φ = 608895360.

The previous prime is 1142251529. The next prime is 1142251547. The reversal of 1142251545 is 5451522411.

It is not a de Polignac number, because 1142251545 - 2⁴ = 1142251529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142251547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13629 + ... + 49701.

It is an arithmetic number, because the mean of its divisors is an integer number (114282432).

Almost surely, 2^1142251545 is an apocalyptic number.

1142251545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142251545 is a deficient number, since it is larger than the sum of its proper divisors (686267367).

1142251545 is a wasteful number, since it uses less digits than its factorization.

1142251545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38192.

The product of its digits is 8000, while the sum is 30.

The square root of 1142251545 is about 33797.2120891650. The cubic root of 1142251545 is about 1045.3312122126.

Adding to 1142251545 its reverse (5451522411), we get a palindrome (6593773956).

The spelling of 1142251545 in words is "one billion, one hundred forty-two million, two hundred fifty-one thousand, five hundred forty-five".