1154131451 has 4 divisors (see below), whose sum is σ = 1259052504. Its totient is φ = 1049210400.

The previous prime is 1154131409. The next prime is 1154131493. The reversal of 1154131451 is 1541314511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1154131409) and next prime (1154131493).

It is a cyclic number.

It is not a de Polignac number, because 1154131451 - 2¹⁰ = 1154130427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1154131451.

It is not an unprimeable number, because it can be changed into a prime (1154131151) 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 in 3 ways as a sum of consecutive naturals, for example, 52460510 + ... + 52460531.

It is an arithmetic number, because the mean of its divisors is an integer number (314763126).

Almost surely, 2^1154131451 is an apocalyptic number.

1154131451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1154131451 is a deficient number, since it is larger than the sum of its proper divisors (104921053).

1154131451 is a wasteful number, since it uses less digits than its factorization.

1154131451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104921052.

The product of its digits is 1200, while the sum is 26.

The square root of 1154131451 is about 33972.5102251806. The cubic root of 1154131451 is about 1048.9426850340.

Adding to 1154131451 its reverse (1541314511), we get a palindrome (2695445962).

The spelling of 1154131451 in words is "one billion, one hundred fifty-four million, one hundred thirty-one thousand, four hundred fifty-one".