137404723 has 8 divisors (see below), whose sum is σ = 138873888. Its totient is φ = 135940224.

The previous prime is 137404703. The next prime is 137404733. The reversal of 137404723 is 327404731.

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 137404723 - 2¹³ = 137396531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137404703) 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, 110461 + ... + 111697.

It is an arithmetic number, because the mean of its divisors is an integer number (17359236).

Almost surely, 2^137404723 is an apocalyptic number.

137404723 is a deficient number, since it is larger than the sum of its proper divisors (1469165).

137404723 is a wasteful number, since it uses less digits than its factorization.

137404723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 137404723 is about 11721.9760706120. The cubic root of 137404723 is about 516.0208149667.

The spelling of 137404723 in words is "one hundred thirty-seven million, four hundred four thousand, seven hundred twenty-three".