135290143657 has 4 divisors (see below), whose sum is σ = 141172323840. Its totient is φ = 129407963476.

The previous prime is 135290143633. The next prime is 135290143669. The reversal of 135290143657 is 756341092531.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135290143657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135290144657) 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, 2941090057 + ... + 2941090102.

It is an arithmetic number, because the mean of its divisors is an integer number (35293080960).

Almost surely, 2^135290143657 is an apocalyptic number.

It is an amenable number.

135290143657 is a deficient number, since it is larger than the sum of its proper divisors (5882180183).

135290143657 is an equidigital number, since it uses as much as digits as its factorization.

135290143657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882180182.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 135290143657 in words is "one hundred thirty-five billion, two hundred ninety million, one hundred forty-three thousand, six hundred fifty-seven".