90547165117135 has 4 divisors (see below), whose sum is σ = 108656598140568. Its totient is φ = 72437732093704.

The previous prime is 90547165117027. The next prime is 90547165117139. The reversal of 90547165117135 is 53171156174509.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90547165117135 - 2²¹ = 90547163019983 is a prime.

It is a super-2 number, since 2×90547165117135² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90547165117139) 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, 9054716511709 + ... + 9054716511718.

It is an arithmetic number, because the mean of its divisors is an integer number (27164149535142).

Almost surely, 2^{90547165117135} is an apocalyptic number.

90547165117135 is a deficient number, since it is larger than the sum of its proper divisors (18109433023433).

90547165117135 is a wasteful number, since it uses less digits than its factorization.

90547165117135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18109433023432.

The product of its (nonzero) digits is 3969000, while the sum is 55.

The spelling of 90547165117135 in words is "ninety trillion, five hundred forty-seven billion, one hundred sixty-five million, one hundred seventeen thousand, one hundred thirty-five".