152173903 has 4 divisors (see below), whose sum is σ = 173913040. Its totient is φ = 130434768.

The previous prime is 152173897. The next prime is 152173913. The reversal of 152173903 is 309371251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 152173903 - 2¹⁷ = 152042831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152173913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10869558 + ... + 10869571.

It is an arithmetic number, because the mean of its divisors is an integer number (43478260).

Almost surely, 2^152173903 is an apocalyptic number.

152173903 is a deficient number, since it is larger than the sum of its proper divisors (21739137).

152173903 is an equidigital number, since it uses as much as digits as its factorization.

152173903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21739136.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 152173903 is about 12335.8786877952. The cubic root of 152173903 is about 533.8837798295.

The spelling of 152173903 in words is "one hundred fifty-two million, one hundred seventy-three thousand, nine hundred three".