154349885 has 8 divisors (see below), whose sum is σ = 196115256. Its totient is φ = 116216320.

The previous prime is 154349879. The next prime is 154349891. The reversal of 154349885 is 588943451.

It is a happy number.

154349885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (154349879) and next prime (154349891).

It can be written as a sum of positive squares in 4 ways, for example, as 52461049 + 101888836 = 7243^2 + 10094^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 154349885 - 2⁴ = 154349869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907856 + ... + 908025.

It is an arithmetic number, because the mean of its divisors is an integer number (24514407).

Almost surely, 2^154349885 is an apocalyptic number.

It is an amenable number.

154349885 is a deficient number, since it is larger than the sum of its proper divisors (41765371).

154349885 is a wasteful number, since it uses less digits than its factorization.

154349885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815903.

The product of its digits is 691200, while the sum is 47.

The square root of 154349885 is about 12423.7629162827. The cubic root of 154349885 is about 536.4164694546.

The spelling of 154349885 in words is "one hundred fifty-four million, three hundred forty-nine thousand, eight hundred eighty-five".