137948767 has 4 divisors (see below), whose sum is σ = 150489576. Its totient is φ = 125407960.

The previous prime is 137948749. The next prime is 137948777. The reversal of 137948767 is 767849731.

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 137948767 - 2⁷ = 137948639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137948777) 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, 6270388 + ... + 6270409.

It is an arithmetic number, because the mean of its divisors is an integer number (37622394).

Almost surely, 2^137948767 is an apocalyptic number.

137948767 is a deficient number, since it is larger than the sum of its proper divisors (12540809).

137948767 is a wasteful number, since it uses less digits than its factorization.

137948767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12540808.

The product of its digits is 1778112, while the sum is 52.

The square root of 137948767 is about 11745.1593007502. The cubic root of 137948767 is about 516.7009670372.

The spelling of 137948767 in words is "one hundred thirty-seven million, nine hundred forty-eight thousand, seven hundred sixty-seven".