1154140231 has 8 divisors (see below), whose sum is σ = 1205762400. Its totient is φ = 1103306400.

The previous prime is 1154140177. The next prime is 1154140307. The reversal of 1154140231 is 1320414511.

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

It is a cyclic number.

It is not a de Polignac number, because 1154140231 - 2¹³ = 1154132039 is a prime.

It is a super-2 number, since 2×1154140231² = 2664079345625466722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154149231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194091 + ... + 199948.

It is an arithmetic number, because the mean of its divisors is an integer number (150720300).

Almost surely, 2^1154140231 is an apocalyptic number.

1154140231 is a deficient number, since it is larger than the sum of its proper divisors (51622169).

1154140231 is a wasteful number, since it uses less digits than its factorization.

1154140231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394169.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1154140231 is about 33972.6394470609. The cubic root of 1154140231 is about 1048.9453449544.

Adding to 1154140231 its reverse (1320414511), we get a palindrome (2474554742).

The spelling of 1154140231 in words is "one billion, one hundred fifty-four million, one hundred forty thousand, two hundred thirty-one".