151644434 has 16 divisors (see below), whose sum is σ = 240586080. Its totient is φ = 71487360.

The previous prime is 151644407. The next prime is 151644439. The reversal of 151644434 is 434446151.

It is a self number, because there is not a number n which added to its sum of digits gives 151644434.

It is not an unprimeable number, because it can be changed into a prime (151644439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1439 + ... + 17474.

It is an arithmetic number, because the mean of its divisors is an integer number (15036630).

Almost surely, 2^151644434 is an apocalyptic number.

151644434 is a deficient number, since it is larger than the sum of its proper divisors (88941646).

151644434 is a wasteful number, since it uses less digits than its factorization.

151644434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19145.

The product of its digits is 23040, while the sum is 32.

The square root of 151644434 is about 12314.3994575456. The cubic root of 151644434 is about 533.2638676019.

The spelling of 151644434 in words is "one hundred fifty-one million, six hundred forty-four thousand, four hundred thirty-four".