137343553 has 4 divisors (see below), whose sum is σ = 137480148. Its totient is φ = 137206960.

The previous prime is 137343551. The next prime is 137343589. The reversal of 137343553 is 355343731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18249984 + 119093569 = 4272^2 + 10913^2 .

It is a cyclic number.

It is not a de Polignac number, because 137343553 - 2¹ = 137343551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137343551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66778 + ... + 68803.

It is an arithmetic number, because the mean of its divisors is an integer number (34370037).

Almost surely, 2^137343553 is an apocalyptic number.

It is an amenable number.

137343553 is a deficient number, since it is larger than the sum of its proper divisors (136595).

137343553 is a wasteful number, since it uses less digits than its factorization.

137343553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136594.

The product of its digits is 56700, while the sum is 34.

The square root of 137343553 is about 11719.3665784461. The cubic root of 137343553 is about 515.9442293448.

The spelling of 137343553 in words is "one hundred thirty-seven million, three hundred forty-three thousand, five hundred fifty-three".