1142214525 has 18 divisors (see below), whose sum is σ = 2045833530. Its totient is φ = 609180960.

The previous prime is 1142214517. The next prime is 1142214527. The reversal of 1142214525 is 5254122411.

It is a happy number.

1142214525 is a `hidden beast` number, since 114 + 2 + 21 + 4 + 525 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 66243321 + 1075971204 = 8139^2 + 32802^2 .

It is not a de Polignac number, because 1142214525 - 2³ = 1142214517 is a prime.

It is a super-2 number, since 2×1142214525² = 2609308042241951250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142214527) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2538030 + ... + 2538479.

Almost surely, 2^1142214525 is an apocalyptic number.

1142214525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142214525 is a deficient number, since it is larger than the sum of its proper divisors (903619005).

1142214525 is a wasteful number, since it uses less digits than its factorization.

1142214525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076525 (or 5076517 counting only the distinct ones).

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

The square root of 1142214525 is about 33796.6644064174. The cubic root of 1142214525 is about 1045.3199191427.

Adding to 1142214525 its reverse (5254122411), we get a palindrome (6396336936).

The spelling of 1142214525 in words is "one billion, one hundred forty-two million, two hundred fourteen thousand, five hundred twenty-five".