1151214431 has 8 divisors (see below), whose sum is σ = 1192818960. Its totient is φ = 1110346432.

The previous prime is 1151214413. The next prime is 1151214437. The reversal of 1151214431 is 1344121511.

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 1151214431 - 2⁶ = 1151214367 is a prime.

It is a super-2 number, since 2×1151214431² = 2650589332285307522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1151214397 and 1151214406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151214437) 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, 180950 + ... + 187203.

It is an arithmetic number, because the mean of its divisors is an integer number (149102370).

Almost surely, 2^1151214431 is an apocalyptic number.

1151214431 is a deficient number, since it is larger than the sum of its proper divisors (41604529).

1151214431 is an equidigital number, since it uses as much as digits as its factorization.

1151214431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368265.

The product of its digits is 480, while the sum is 23.

The square root of 1151214431 is about 33929.5509990922. The cubic root of 1151214431 is about 1048.0582195649.

Adding to 1151214431 its reverse (1344121511), we get a palindrome (2495335942).

The spelling of 1151214431 in words is "one billion, one hundred fifty-one million, two hundred fourteen thousand, four hundred thirty-one".