1541449149 has 8 divisors (see below), whose sum is σ = 2061961440. Its totient is φ = 1024284816.

The previous prime is 1541449141. The next prime is 1541449171. The reversal of 1541449149 is 9419441451.

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

It is not a de Polignac number, because 1541449149 - 2³ = 1541449141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1541449149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1541449141) 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, 835914 + ... + 837755.

It is an arithmetic number, because the mean of its divisors is an integer number (257745180).

Almost surely, 2^1541449149 is an apocalyptic number.

It is an amenable number.

1541449149 is a deficient number, since it is larger than the sum of its proper divisors (520512291).

1541449149 is a wasteful number, since it uses less digits than its factorization.

1541449149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673979.

The product of its digits is 103680, while the sum is 42.

The square root of 1541449149 is about 39261.2932670334. The cubic root of 1541449149 is about 1155.1624613586.

The spelling of 1541449149 in words is "one billion, five hundred forty-one million, four hundred forty-nine thousand, one hundred forty-nine".