135940937 has 4 divisors (see below), whose sum is σ = 148299216. Its totient is φ = 123582660.

The previous prime is 135940913. The next prime is 135940939. The reversal of 135940937 is 739049531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 739049531 = 11 ⋅67186321.

It is a cyclic number.

It is not a de Polignac number, because 135940937 - 2¹⁸ = 135678793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135940894 and 135940903.

It is not an unprimeable number, because it can be changed into a prime (135940939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6179123 + ... + 6179144.

It is an arithmetic number, because the mean of its divisors is an integer number (37074804).

Almost surely, 2^135940937 is an apocalyptic number.

It is an amenable number.

135940937 is a deficient number, since it is larger than the sum of its proper divisors (12358279).

135940937 is a wasteful number, since it uses less digits than its factorization.

135940937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358278.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 135940937 is about 11659.3712094607. The cubic root of 135940937 is about 514.1818624480.

The spelling of 135940937 in words is "one hundred thirty-five million, nine hundred forty thousand, nine hundred thirty-seven".