135145641 has 8 divisors (see below), whose sum is σ = 181190464. Its totient is φ = 89598960.

The previous prime is 135145639. The next prime is 135145739. The reversal of 135145641 is 146541531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135145641 - 2¹ = 135145639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135145599 and 135145608.

It is not an unprimeable number, because it can be changed into a prime (135145141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123901 + ... + 124986.

It is an arithmetic number, because the mean of its divisors is an integer number (22648808).

Almost surely, 2^135145641 is an apocalyptic number.

It is an amenable number.

135145641 is a deficient number, since it is larger than the sum of its proper divisors (46044823).

135145641 is a wasteful number, since it uses less digits than its factorization.

135145641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249071.

The product of its digits is 7200, while the sum is 30.

The square root of 135145641 is about 11625.2157399336. The cubic root of 135145641 is about 513.1771937089.

The spelling of 135145641 in words is "one hundred thirty-five million, one hundred forty-five thousand, six hundred forty-one".