151240644 has 36 divisors (see below), whose sum is σ = 383436144. Its totient is φ = 50264112.

The previous prime is 151240631. The next prime is 151240667. The reversal of 151240644 is 446042151.

151240644 is a `hidden beast` number, since 1 + 5 + 12 + 4 + 0 + 644 = 666.

151240644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6439 + ... + 18545.

It is an arithmetic number, because the mean of its divisors is an integer number (10651004).

Almost surely, 2^151240644 is an apocalyptic number.

It is an amenable number.

151240644 is an abundant number, since it is smaller than the sum of its proper divisors (232195500).

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

151240644 is a wasteful number, since it uses less digits than its factorization.

151240644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12464 (or 12459 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 151240644 is about 12297.9934948755. The cubic root of 151240644 is about 532.7901321793.

Adding to 151240644 its reverse (446042151), we get a palindrome (597282795).

The spelling of 151240644 in words is "one hundred fifty-one million, two hundred forty thousand, six hundred forty-four".