138227464 has 32 divisors (see below), whose sum is σ = 264983040. Its totient is φ = 67579200.

The previous prime is 138227461. The next prime is 138227473. The reversal of 138227464 is 464722831.

It is not an unprimeable number, because it can be changed into a prime (138227461) 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, 92467 + ... + 93949.

It is an arithmetic number, because the mean of its divisors is an integer number (8280720).

Almost surely, 2^138227464 is an apocalyptic number.

It is an amenable number.

138227464 is a deficient number, since it is larger than the sum of its proper divisors (126755576).

138227464 is a wasteful number, since it uses less digits than its factorization.

138227464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1737 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 138227464 is about 11757.0176490469. The cubic root of 138227464 is about 517.0486955094.

The spelling of 138227464 in words is "one hundred thirty-eight million, two hundred twenty-seven thousand, four hundred sixty-four".