152640534 has 16 divisors (see below), whose sum is σ = 305445888. Its totient is φ = 50852712.

The previous prime is 152640533. The next prime is 152640563. The reversal of 152640534 is 435046251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152640533) 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, 7479 + ... + 19005.

It is an arithmetic number, because the mean of its divisors is an integer number (19090368).

Almost surely, 2^152640534 is an apocalyptic number.

152640534 is an abundant number, since it is smaller than the sum of its proper divisors (152805354).

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

152640534 is a wasteful number, since it uses less digits than its factorization.

152640534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13739.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 152640534 is about 12354.7777802759. Note that the first 4 decimals coincide. The cubic root of 152640534 is about 534.4289291765.

Adding to 152640534 its reverse (435046251), we get a palindrome (587686785).

The spelling of 152640534 in words is "one hundred fifty-two million, six hundred forty thousand, five hundred thirty-four".