1154131214 has 16 divisors (see below), whose sum is σ = 1837088640. Its totient is φ = 542619000.

The previous prime is 1154131189. The next prime is 1154131217. The reversal of 1154131214 is 4121314511.

It is a super-2 number, since 2×1154131214² = 2664037718258227592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 1154131214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154131217) 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, 209912 + ... + 215339.

It is an arithmetic number, because the mean of its divisors is an integer number (114818040).

Almost surely, 2^1154131214 is an apocalyptic number.

1154131214 is a deficient number, since it is larger than the sum of its proper divisors (682957426).

1154131214 is a wasteful number, since it uses less digits than its factorization.

1154131214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425335.

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

The square root of 1154131214 is about 33972.5067370661. The cubic root of 1154131214 is about 1048.9426132341.

Adding to 1154131214 its reverse (4121314511), we get a palindrome (5275445725).

The spelling of 1154131214 in words is "one billion, one hundred fifty-four million, one hundred thirty-one thousand, two hundred fourteen".