137505514 has 4 divisors (see below), whose sum is σ = 206258274. Its totient is φ = 68752756.

The previous prime is 137505509. The next prime is 137505517. The reversal of 137505514 is 415505731.

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

It can be written as a sum of positive squares in only one way, i.e., 136539225 + 966289 = 11685^2 + 983^2 .

It is not an unprimeable number, because it can be changed into a prime (137505517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34376377 + ... + 34376380.

Almost surely, 2^137505514 is an apocalyptic number.

137505514 is a deficient number, since it is larger than the sum of its proper divisors (68752760).

137505514 is an equidigital number, since it uses as much as digits as its factorization.

137505514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68752759.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 137505514 is about 11726.2745149515. The cubic root of 137505514 is about 516.1469570209.

The spelling of 137505514 in words is "one hundred thirty-seven million, five hundred five thousand, five hundred fourteen".