137742061 has 2 divisors, whose sum is σ = 137742062. Its totient is φ = 137742060.

The previous prime is 137742053. The next prime is 137742079. The reversal of 137742061 is 160247731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130096836 + 7645225 = 11406^2 + 2765^2 .

It is a cyclic number.

It is not a de Polignac number, because 137742061 - 2³ = 137742053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137742161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68871030 + 68871031.

It is an arithmetic number, because the mean of its divisors is an integer number (68871031).

Almost surely, 2^137742061 is an apocalyptic number.

It is an amenable number.

137742061 is a deficient number, since it is larger than the sum of its proper divisors (1).

137742061 is an equidigital number, since it uses as much as digits as its factorization.

137742061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 137742061 is about 11736.3563766614. The cubic root of 137742061 is about 516.4427586617.

Adding to 137742061 its reverse (160247731), we get a palindrome (297989792).

The spelling of 137742061 in words is "one hundred thirty-seven million, seven hundred forty-two thousand, sixty-one".