137243045461 has 8 divisors (see below), whose sum is σ = 142595551800. Its totient is φ = 131931871680.

The previous prime is 137243045453. The next prime is 137243045479. The reversal of 137243045461 is 164540342731.

It can be written as a sum of positive squares in 4 ways, for example, as 9941087025 + 127301958436 = 99705^2 + 356794^2 .

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 137243045461 - 2³ = 137243045453 is a prime.

It is a super-2 number, since 2×137243045461² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137243045411) 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, 10326370 + ... + 10339651.

It is an arithmetic number, because the mean of its divisors is an integer number (17824443975).

Almost surely, 2^137243045461 is an apocalyptic number.

It is an amenable number.

137243045461 is a deficient number, since it is larger than the sum of its proper divisors (5352506339).

137243045461 is a wasteful number, since it uses less digits than its factorization.

137243045461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20666279.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 137243045461 in words is "one hundred thirty-seven billion, two hundred forty-three million, forty-five thousand, four hundred sixty-one".