1154885231 has 8 divisors (see below), whose sum is σ = 1172697264. Its totient is φ = 1137090240.

The previous prime is 1154885197. The next prime is 1154885233. The reversal of 1154885231 is 1325884511.

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 1154885231 - 2⁶ = 1154885167 is a prime.

It is a super-2 number, since 2×1154885231² = 2667519793563846722, 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 (1154885233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227501 + ... + 232521.

It is an arithmetic number, because the mean of its divisors is an integer number (146587158).

Almost surely, 2^1154885231 is an apocalyptic number.

1154885231 is a deficient number, since it is larger than the sum of its proper divisors (17812033).

1154885231 is an equidigital number, since it uses as much as digits as its factorization.

1154885231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8521.

The product of its digits is 38400, while the sum is 38.

The square root of 1154885231 is about 33983.6023840911. The cubic root of 1154885231 is about 1049.1709952338.

The spelling of 1154885231 in words is "one billion, one hundred fifty-four million, eight hundred eighty-five thousand, two hundred thirty-one".