152044861 has 4 divisors (see below), whose sum is σ = 155580832. Its totient is φ = 148508892.

The previous prime is 152044853. The next prime is 152044873. The reversal of 152044861 is 168440251.

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: 168440251 = 7 ⋅24062893.

It is a cyclic number.

It is not a de Polignac number, because 152044861 - 2³ = 152044853 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 (152044891) 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, 1767921 + ... + 1768006.

It is an arithmetic number, because the mean of its divisors is an integer number (38895208).

Almost surely, 2^152044861 is an apocalyptic number.

It is an amenable number.

152044861 is a deficient number, since it is larger than the sum of its proper divisors (3535971).

152044861 is an equidigital number, since it uses as much as digits as its factorization.

152044861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535970.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 152044861 is about 12330.6472255109. The cubic root of 152044861 is about 533.7328277232.

The spelling of 152044861 in words is "one hundred fifty-two million, forty-four thousand, eight hundred sixty-one".