69138946 has 8 divisors (see below), whose sum is σ = 103752000. Its totient is φ = 34554948.

The previous prime is 69138919. The next prime is 69138947. The reversal of 69138946 is 64983196.

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

It is a junction number, because it is equal to n+sod(n) for n = 69138896 and 69138905.

It is not an unprimeable number, because it can be changed into a prime (69138947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235 + ... + 11761.

It is an arithmetic number, because the mean of its divisors is an integer number (12969000).

Almost surely, 2^69138946 is an apocalyptic number.

69138946 is a deficient number, since it is larger than the sum of its proper divisors (34613054).

69138946 is a wasteful number, since it uses less digits than its factorization.

69138946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14528.

The product of its digits is 279936, while the sum is 46.

The square root of 69138946 is about 8314.9832230739. The cubic root of 69138946 is about 410.4317205412.

The spelling of 69138946 in words is "sixty-nine million, one hundred thirty-eight thousand, nine hundred forty-six".