137900263 has 4 divisors (see below), whose sum is σ = 138007080. Its totient is φ = 137793448.

The previous prime is 137900219. The next prime is 137900317. The reversal of 137900263 is 362009731.

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

It is a cyclic number.

It is not a de Polignac number, because 137900263 - 2²⁵ = 104345831 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137900563) 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, 51448 + ... + 54061.

It is an arithmetic number, because the mean of its divisors is an integer number (34501770).

Almost surely, 2^137900263 is an apocalyptic number.

137900263 is a deficient number, since it is larger than the sum of its proper divisors (106817).

137900263 is a wasteful number, since it uses less digits than its factorization.

137900263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106816.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 137900263 is about 11743.0942685478. The cubic root of 137900263 is about 516.6404010697.

Adding to 137900263 its reverse (362009731), we get a palindrome (499909994).

The spelling of 137900263 in words is "one hundred thirty-seven million, nine hundred thousand, two hundred sixty-three".