387026149 has 4 divisors (see below), whose sum is σ = 387066636. Its totient is φ = 386985664.

The previous prime is 387026113. The next prime is 387026161. The reversal of 387026149 is 941620783.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 305900100 + 81126049 = 17490^2 + 9007^2 .

It is a cyclic number.

It is not a de Polignac number, because 387026149 - 2²³ = 378637541 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 (387026249) 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, 2967 + ... + 27979.

It is an arithmetic number, because the mean of its divisors is an integer number (96766659).

Almost surely, 2^387026149 is an apocalyptic number.

It is an amenable number.

387026149 is a deficient number, since it is larger than the sum of its proper divisors (40487).

387026149 is a wasteful number, since it uses less digits than its factorization.

387026149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40486.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 387026149 is about 19672.9801758656. The cubic root of 387026149 is about 728.7525759397.

The spelling of 387026149 in words is "three hundred eighty-seven million, twenty-six thousand, one hundred forty-nine".