1255213154 has 8 divisors (see below), whose sum is σ = 2027652060. Its totient is φ = 579329136.

The previous prime is 1255213147. The next prime is 1255213159. The reversal of 1255213154 is 4513125521.

It can be written as a sum of positive squares in 2 ways, for example, as 1208605225 + 46607929 = 34765^2 + 6827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1255213159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24138689 + ... + 24138740.

Almost surely, 2^1255213154 is an apocalyptic number.

1255213154 is a deficient number, since it is larger than the sum of its proper divisors (772438906).

1255213154 is a wasteful number, since it uses less digits than its factorization.

1255213154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48277444.

The product of its digits is 6000, while the sum is 29.

The square root of 1255213154 is about 35428.9874820041. The cubic root of 1255213154 is about 1078.7127879884.

Adding to 1255213154 its reverse (4513125521), we get a palindrome (5768338675).

The spelling of 1255213154 in words is "one billion, two hundred fifty-five million, two hundred thirteen thousand, one hundred fifty-four".