1255100342 has 4 divisors (see below), whose sum is σ = 1882650516. Its totient is φ = 627550170.

The previous prime is 1255100321. The next prime is 1255100351. The reversal of 1255100342 is 2430015521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2430015521 = 149 ⋅16308829.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313775084 + ... + 313775087.

It is an arithmetic number, because the mean of its divisors is an integer number (470662629).

Almost surely, 2^1255100342 is an apocalyptic number.

1255100342 is a deficient number, since it is larger than the sum of its proper divisors (627550174).

1255100342 is an equidigital number, since it uses as much as digits as its factorization.

1255100342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627550173.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1255100342 is about 35427.3953600882. The cubic root of 1255100342 is about 1078.6804706638.

Adding to 1255100342 its reverse (2430015521), we get a palindrome (3685115863).

The spelling of 1255100342 in words is "one billion, two hundred fifty-five million, one hundred thousand, three hundred forty-two".