138862023 has 8 divisors (see below), whose sum is σ = 185204736. Its totient is φ = 92547000.

The previous prime is 138861991. The next prime is 138862027. The reversal of 138862023 is 320268831.

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

It is not a de Polignac number, because 138862023 - 2⁵ = 138861991 is a prime.

It is a super-2 number, since 2×138862023² = 38565322863305058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138862027) 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, 12858 + ... + 21048.

It is an arithmetic number, because the mean of its divisors is an integer number (23150592).

Almost surely, 2^138862023 is an apocalyptic number.

138862023 is a deficient number, since it is larger than the sum of its proper divisors (46342713).

138862023 is an equidigital number, since it uses as much as digits as its factorization.

138862023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13845.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 138862023 is about 11783.9731415173. The cubic root of 138862023 is about 517.8386907471.

The spelling of 138862023 in words is "one hundred thirty-eight million, eight hundred sixty-two thousand, twenty-three".