154871641 has 4 divisors (see below), whose sum is σ = 163022800. Its totient is φ = 146720484.

The previous prime is 154871621. The next prime is 154871657. The reversal of 154871641 is 146178451.

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.

It is a cyclic number.

It is not a de Polignac number, because 154871641 - 2¹⁷ = 154740569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154871641.

It is not an unprimeable number, because it can be changed into a prime (154871621) 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, 4075551 + ... + 4075588.

It is an arithmetic number, because the mean of its divisors is an integer number (40755700).

Almost surely, 2^154871641 is an apocalyptic number.

It is an amenable number.

154871641 is a deficient number, since it is larger than the sum of its proper divisors (8151159).

154871641 is an equidigital number, since it uses as much as digits as its factorization.

154871641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8151158.

The product of its digits is 26880, while the sum is 37.

The square root of 154871641 is about 12444.7435088072. The cubic root of 154871641 is about 537.0202140796.

The spelling of 154871641 in words is "one hundred fifty-four million, eight hundred seventy-one thousand, six hundred forty-one".