138052801 has 8 divisors (see below), whose sum is σ = 146278440. Its totient is φ = 129838848.

The previous prime is 138052799. The next prime is 138052813. The reversal of 138052801 is 108250831.

It can be written as a sum of positive squares in 4 ways, for example, as 99600400 + 38452401 = 9980^2 + 6201^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 138052801 - 2¹ = 138052799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138052801.

It is not an unprimeable number, because it can be changed into a prime (138053801) 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, 37495 + ... + 41011.

It is an arithmetic number, because the mean of its divisors is an integer number (18284805).

Almost surely, 2^138052801 is an apocalyptic number.

It is an amenable number.

138052801 is a deficient number, since it is larger than the sum of its proper divisors (8225639).

138052801 is a wasteful number, since it uses less digits than its factorization.

138052801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 138052801 is about 11749.5872693470. The cubic root of 138052801 is about 516.8308243320.

The spelling of 138052801 in words is "one hundred thirty-eight million, fifty-two thousand, eight hundred one".