38501145 has 12 divisors (see below), whose sum is σ = 66735396. Its totient is φ = 20533920.

The previous prime is 38501137. The next prime is 38501147. The reversal of 38501145 is 54110583.

It can be written as a sum of positive squares in 2 ways, for example, as 17816841 + 20684304 = 4221^2 + 4548^2 .

It is not a de Polignac number, because 38501145 - 2³ = 38501137 is a prime.

It is a super-2 number, since 2×38501145² = 2964676332622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38501147) 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, 427746 + ... + 427835.

It is an arithmetic number, because the mean of its divisors is an integer number (5561283).

Almost surely, 2^38501145 is an apocalyptic number.

It is an amenable number.

38501145 is a deficient number, since it is larger than the sum of its proper divisors (28234251).

38501145 is a wasteful number, since it uses less digits than its factorization.

38501145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855592 (or 855589 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 38501145 is about 6204.9290890388. The cubic root of 38501145 is about 337.6690182231.

The spelling of 38501145 in words is "thirty-eight million, five hundred one thousand, one hundred forty-five".