137507834 has 4 divisors (see below), whose sum is σ = 206261754. Its totient is φ = 68753916.

The previous prime is 137507813. The next prime is 137507857. The reversal of 137507834 is 438705731.

137507834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 438705731 = 4903 ⋅89477.

It can be written as a sum of positive squares in only one way, i.e., 80550625 + 56957209 = 8975^2 + 7547^2 .

It is a super-2 number, since 2×137507834² = 37816808822743112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34376957 + ... + 34376960.

Almost surely, 2^137507834 is an apocalyptic number.

137507834 is a deficient number, since it is larger than the sum of its proper divisors (68753920).

137507834 is an equidigital number, since it uses as much as digits as its factorization.

137507834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68753919.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 137507834 is about 11726.3734376831. The cubic root of 137507834 is about 516.1498598238.

The spelling of 137507834 in words is "one hundred thirty-seven million, five hundred seven thousand, eight hundred thirty-four".