1142678623 has 2 divisors, whose sum is σ = 1142678624. Its totient is φ = 1142678622.

The previous prime is 1142678609. The next prime is 1142678633. The reversal of 1142678623 is 3268762411.

It is a strong prime.

It is an emirp because it is prime and its reverse (3268762411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142678623 - 2⁵ = 1142678591 is a prime.

It is a super-2 number, since 2×1142678623² = 2611428870922352258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142678633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571339311 + 571339312.

It is an arithmetic number, because the mean of its divisors is an integer number (571339312).

Almost surely, 2^1142678623 is an apocalyptic number.

1142678623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142678623 is an equidigital number, since it uses as much as digits as its factorization.

1142678623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 1142678623 is about 33803.5297417296. The cubic root of 1142678623 is about 1045.4614760870.

The spelling of 1142678623 in words is "one billion, one hundred forty-two million, six hundred seventy-eight thousand, six hundred twenty-three".