137623001 has 2 divisors, whose sum is σ = 137623002. Its totient is φ = 137623000.

The previous prime is 137622983. The next prime is 137623021. The reversal of 137623001 is 100326731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133379401 + 4243600 = 11549^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 137623001 - 2¹⁰ = 137621977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (137623021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68811500 + 68811501.

It is an arithmetic number, because the mean of its divisors is an integer number (68811501).

Almost surely, 2^137623001 is an apocalyptic number.

It is an amenable number.

137623001 is a deficient number, since it is larger than the sum of its proper divisors (1).

137623001 is an equidigital number, since it uses as much as digits as its factorization.

137623001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 137623001 is about 11731.2830074123. The cubic root of 137623001 is about 516.2939166911.

Adding to 137623001 its reverse (100326731), we get a palindrome (237949732).

The spelling of 137623001 in words is "one hundred thirty-seven million, six hundred twenty-three thousand, one".