149385877 has 8 divisors (see below), whose sum is σ = 151378200. Its totient is φ = 147400704.

The previous prime is 149385833. The next prime is 149385883. The reversal of 149385877 is 778583941.

It can be written as a sum of positive squares in 4 ways, for example, as 74494161 + 74891716 = 8631^2 + 8654^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 149385877 - 2²⁷ = 15168149 is a prime.

It is a super-2 number, since 2×149385877² = 44632280494118258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149386877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49899 + ... + 52807.

It is an arithmetic number, because the mean of its divisors is an integer number (18922275).

Almost surely, 2^149385877 is an apocalyptic number.

It is an amenable number.

149385877 is a deficient number, since it is larger than the sum of its proper divisors (1992323).

149385877 is an equidigital number, since it uses as much as digits as its factorization.

149385877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575.

The product of its digits is 1693440, while the sum is 52.

The square root of 149385877 is about 12222.3515331543. The cubic root of 149385877 is about 530.6031782371.

The spelling of 149385877 in words is "one hundred forty-nine million, three hundred eighty-five thousand, eight hundred seventy-seven".