152809901 has 4 divisors (see below), whose sum is σ = 153052704. Its totient is φ = 152567100.

The previous prime is 152809883. The next prime is 152809919. The reversal of 152809901 is 109908251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 109908251 = 1423 ⋅77237.

It is an interprime number because it is at equal distance from previous prime (152809883) and next prime (152809919).

It is a cyclic number.

It is not a de Polignac number, because 152809901 - 2¹⁴ = 152793517 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 (152809201) 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, 120455 + ... + 121716.

It is an arithmetic number, because the mean of its divisors is an integer number (38263176).

Almost surely, 2^152809901 is an apocalyptic number.

It is an amenable number.

152809901 is a deficient number, since it is larger than the sum of its proper divisors (242803).

152809901 is an equidigital number, since it uses as much as digits as its factorization.

152809901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242802.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 152809901 is about 12361.6301918477. The cubic root of 152809901 is about 534.6265201329.

The spelling of 152809901 in words is "one hundred fifty-two million, eight hundred nine thousand, nine hundred one".