1142531450 has 12 divisors (see below), whose sum is σ = 2125108590. Its totient is φ = 457012560.

The previous prime is 1142531407. The next prime is 1142531459. The reversal of 1142531450 is 541352411.

It can be written as a sum of positive squares in 3 ways, for example, as 552673081 + 589858369 = 23509^2 + 24287^2 .

It is a super-2 number, since 2×1142531450² = 2610756228478205000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142531459) 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, 11425265 + ... + 11425364.

Almost surely, 2^1142531450 is an apocalyptic number.

1142531450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142531450 is a deficient number, since it is larger than the sum of its proper divisors (982577140).

1142531450 is a wasteful number, since it uses less digits than its factorization.

1142531450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22850641 (or 22850636 counting only the distinct ones).

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

The square root of 1142531450 is about 33801.3527835795. The cubic root of 1142531450 is about 1045.4165902357.

Adding to 1142531450 its reverse (541352411), we get a palindrome (1683883861).

It can be divided in two parts, 11425 and 31450, that added together give a cube (42875 = 35³).

The spelling of 1142531450 in words is "one billion, one hundred forty-two million, five hundred thirty-one thousand, four hundred fifty".