152138647 has 6 divisors (see below), whose sum is σ = 153875288. Its totient is φ = 150421392.

The previous prime is 152138641. The next prime is 152138683. The reversal of 152138647 is 746831251.

152138647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 152138647 - 2²³ = 143750039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152138641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1683 + ... + 17524.

Almost surely, 2^152138647 is an apocalyptic number.

152138647 is a deficient number, since it is larger than the sum of its proper divisors (1736641).

152138647 is an frugal number, since it uses more digits than its factorization.

152138647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19385 (or 19296 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 152138647 is about 12334.4496026373. The cubic root of 152138647 is about 533.8425461707.

Adding to 152138647 its reverse (746831251), we get a palindrome (898969898).

The spelling of 152138647 in words is "one hundred fifty-two million, one hundred thirty-eight thousand, six hundred forty-seven".