135923751 has 12 divisors (see below), whose sum is σ = 203606312. Its totient is φ = 90615672.

The previous prime is 135923729. The next prime is 135923773. The reversal of 135923751 is 157329531.

135923751 is a `hidden beast` number, since 13 + 592 + 3 + 7 + 51 = 666.

It is an interprime number because it is at equal distance from previous prime (135923729) and next prime (135923773).

It is not a de Polignac number, because 135923751 - 2⁵ = 135923719 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 (135923351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279436 + ... + 279921.

Almost surely, 2^135923751 is an apocalyptic number.

135923751 is a deficient number, since it is larger than the sum of its proper divisors (67682561).

135923751 is an frugal number, since it uses more digits than its factorization.

135923751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559372 (or 559360 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 135923751 is about 11658.6341824418. The cubic root of 135923751 is about 514.1601934740.

The spelling of 135923751 in words is "one hundred thirty-five million, nine hundred twenty-three thousand, seven hundred fifty-one".