38211149 has 4 divisors (see below), whose sum is σ = 38561820. Its totient is φ = 37860480.

The previous prime is 38211143. The next prime is 38211157. The reversal of 38211149 is 94111283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94111283 = 7 ⋅13444469.

It can be written as a sum of positive squares in 2 ways, for example, as 29626249 + 8584900 = 5443^2 + 2930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38211149 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 (38211143) 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, 175172 + ... + 175389.

It is an arithmetic number, because the mean of its divisors is an integer number (9640455).

Almost surely, 2^38211149 is an apocalyptic number.

It is an amenable number.

38211149 is a deficient number, since it is larger than the sum of its proper divisors (350671).

38211149 is a wasteful number, since it uses less digits than its factorization.

38211149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350670.

The product of its digits is 1728, while the sum is 29.

The square root of 38211149 is about 6181.5167232646. The cubic root of 38211149 is about 336.8190906489.

The spelling of 38211149 in words is "thirty-eight million, two hundred eleven thousand, one hundred forty-nine".