1151605434 has 64 divisors (see below), whose sum is σ = 2668868352. Its totient is φ = 324480000.

The previous prime is 1151605387. The next prime is 1151605439. The reversal of 1151605434 is 4345061511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1151605439) 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 31 ways as a sum of consecutive naturals, for example, 1700704 + ... + 1701380.

It is an arithmetic number, because the mean of its divisors is an integer number (41701068).

Almost surely, 2^1151605434 is an apocalyptic number.

1151605434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1151605434 is an abundant number, since it is smaller than the sum of its proper divisors (1517262918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151605434 is a wasteful number, since it uses less digits than its factorization.

1151605434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1151605434 is about 33935.3124930359. The cubic root of 1151605434 is about 1048.1768616734.

Adding to 1151605434 its reverse (4345061511), we get a palindrome (5496666945).

The spelling of 1151605434 in words is "one billion, one hundred fifty-one million, six hundred five thousand, four hundred thirty-four".