1143625078 has 4 divisors (see below), whose sum is σ = 1715437620. Its totient is φ = 571812538.

The previous prime is 1143625073. The next prime is 1143625079. The reversal of 1143625078 is 8705263411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8705263411 = 13 ⋅669635647.

It is a super-3 number, since 3×1143625078³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143625073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285906268 + ... + 285906271.

It is an arithmetic number, because the mean of its divisors is an integer number (428859405).

Almost surely, 2^1143625078 is an apocalyptic number.

1143625078 is a deficient number, since it is larger than the sum of its proper divisors (571812542).

1143625078 is an equidigital number, since it uses as much as digits as its factorization.

1143625078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571812541.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1143625078 is about 33817.5261957465. The cubic root of 1143625078 is about 1045.7500405058.

Adding to 1143625078 its reverse (8705263411), we get a palindrome (9848888489).

The spelling of 1143625078 in words is "one billion, one hundred forty-three million, six hundred twenty-five thousand, seventy-eight".