1151515254 has 32 divisors (see below), whose sum is σ = 2428853760. Its totient is φ = 362944800.

The previous prime is 1151515201. The next prime is 1151515301. The reversal of 1151515254 is 4525151511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52339 + ... + 71009.

It is an arithmetic number, because the mean of its divisors is an integer number (75901680).

Almost surely, 2^1151515254 is an apocalyptic number.

1151515254 is an abundant number, since it is smaller than the sum of its proper divisors (1277338506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151515254 is a wasteful number, since it uses less digits than its factorization.

1151515254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19236.

The product of its digits is 5000, while the sum is 30.

The square root of 1151515254 is about 33933.9837625941. The cubic root of 1151515254 is about 1048.1495007232.

Adding to 1151515254 its reverse (4525151511), we get a palindrome (5676666765).

The spelling of 1151515254 in words is "one billion, one hundred fifty-one million, five hundred fifteen thousand, two hundred fifty-four".