138498503527 has 8 divisors (see below), whose sum is σ = 140194185264. Its totient is φ = 136803465408.

The previous prime is 138498503513. The next prime is 138498503567. The reversal of 138498503527 is 725305894831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138498503527 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 (138498503567) 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, 279433 + ... + 595885.

It is an arithmetic number, because the mean of its divisors is an integer number (17524273158).

Almost surely, 2^138498503527 is an apocalyptic number.

138498503527 is a deficient number, since it is larger than the sum of its proper divisors (1695681737).

138498503527 is an equidigital number, since it uses as much as digits as its factorization.

138498503527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321809.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 138498503527 in words is "one hundred thirty-eight billion, four hundred ninety-eight million, five hundred three thousand, five hundred twenty-seven".