137001674021 has 2 divisors, whose sum is σ = 137001674022. Its totient is φ = 137001674020.

The previous prime is 137001673973. The next prime is 137001674149. The reversal of 137001674021 is 120476100731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122563008100 + 14438665921 = 350090^2 + 120161^2 .

It is a cyclic number.

It is not a de Polignac number, because 137001674021 - 2³⁰ = 135927932197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137001674521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68500837010 + 68500837011.

It is an arithmetic number, because the mean of its divisors is an integer number (68500837011).

Almost surely, 2^137001674021 is an apocalyptic number.

It is an amenable number.

137001674021 is a deficient number, since it is larger than the sum of its proper divisors (1).

137001674021 is an equidigital number, since it uses as much as digits as its factorization.

137001674021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

Adding to 137001674021 its reverse (120476100731), we get a palindrome (257477774752).

The spelling of 137001674021 in words is "one hundred thirty-seven billion, one million, six hundred seventy-four thousand, twenty-one".