135740997 has 48 divisors (see below), whose sum is σ = 237752320. Its totient is φ = 72900000.

The previous prime is 135740993. The next prime is 135740999. The reversal of 135740997 is 799047531.

It is not a de Polignac number, because 135740997 - 2² = 135740993 is a prime.

It is a super-3 number, since 3×135740997³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135740993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180372 + ... + 181122.

Almost surely, 2^135740997 is an apocalyptic number.

135740997 is the 9513-rd pentagonal number.

It is an amenable number.

135740997 is a deficient number, since it is larger than the sum of its proper divisors (102011323).

135740997 is a wasteful number, since it uses less digits than its factorization.

135740997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 135740997 is about 11650.7938356148. The cubic root of 135740997 is about 513.9296549656.

The spelling of 135740997 in words is "one hundred thirty-five million, seven hundred forty thousand, nine hundred ninety-seven".