1151252254 has 4 divisors (see below), whose sum is σ = 1726878384. Its totient is φ = 575626126.

The previous prime is 1151252251. The next prime is 1151252339. The reversal of 1151252254 is 4522521511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4522521511 = 293 ⋅15435227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151252251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287813062 + ... + 287813065.

It is an arithmetic number, because the mean of its divisors is an integer number (431719596).

Almost surely, 2^1151252254 is an apocalyptic number.

1151252254 is a deficient number, since it is larger than the sum of its proper divisors (575626130).

1151252254 is an equidigital number, since it uses as much as digits as its factorization.

1151252254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575626129.

The product of its digits is 4000, while the sum is 28.

The square root of 1151252254 is about 33930.1083700008. The cubic root of 1151252254 is about 1048.0696973779.

Adding to 1151252254 its reverse (4522521511), we get a palindrome (5673773765).

The spelling of 1151252254 in words is "one billion, one hundred fifty-one million, two hundred fifty-two thousand, two hundred fifty-four".