1142300491 has 2 divisors, whose sum is σ = 1142300492. Its totient is φ = 1142300490.

The previous prime is 1142300479. The next prime is 1142300507. The reversal of 1142300491 is 1940032411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142300491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142600491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571150245 + 571150246.

It is an arithmetic number, because the mean of its divisors is an integer number (571150246).

Almost surely, 2^1142300491 is an apocalyptic number.

1142300491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142300491 is an equidigital number, since it uses as much as digits as its factorization.

1142300491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1142300491 is about 33797.9361943891. The cubic root of 1142300491 is about 1045.3461429725.

The spelling of 1142300491 in words is "one billion, one hundred forty-two million, three hundred thousand, four hundred ninety-one".