38215149 has 12 divisors (see below), whose sum is σ = 59272704. Its totient is φ = 21837144.

The previous prime is 38215147. The next prime is 38215153. The reversal of 38215149 is 94151283.

It is not a de Polignac number, because 38215149 - 2¹ = 38215147 is a prime.

It is a super-2 number, since 2×38215149² = 2920795226184402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38215147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129837 + ... + 130130.

It is an arithmetic number, because the mean of its divisors is an integer number (4939392).

Almost surely, 2^38215149 is an apocalyptic number.

It is an amenable number.

38215149 is a deficient number, since it is larger than the sum of its proper divisors (21057555).

38215149 is a wasteful number, since it uses less digits than its factorization.

38215149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259984 (or 259977 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 38215149 is about 6181.8402599873. The cubic root of 38215149 is about 336.8308431469.

The spelling of 38215149 in words is "thirty-eight million, two hundred fifteen thousand, one hundred forty-nine".