9150000061 has 4 divisors (see below), whose sum is σ = 9300000124. Its totient is φ = 9000000000.

The previous prime is 9150000043. The next prime is 9150000089. The reversal of 9150000061 is 1600000519.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1600000519 = 13 ⋅123076963.

It can be written as a sum of positive squares in 2 ways, for example, as 2159367961 + 6990632100 = 46469^2 + 83610^2 .

It is a 9-Lehmer number, since φ(9150000061) divides (9150000061-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 9150000061 - 2⁵ = 9150000029 is a prime.

It is a super-2 number, since 2×9150000061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9149999987 and 9150000041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9150060061) 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, 74999940 + ... + 75000061.

It is an arithmetic number, because the mean of its divisors is an integer number (2325000031).

Almost surely, 2^9150000061 is an apocalyptic number.

It is an amenable number.

9150000061 is a deficient number, since it is larger than the sum of its proper divisors (150000063).

9150000061 is a wasteful number, since it uses less digits than its factorization.

9150000061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150000062.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 9150000061 is about 95655.6326673971. The cubic root of 9150000061 is about 2091.5762367413.

The spelling of 9150000061 in words is "nine billion, one hundred fifty million, sixty-one", and thus it is an aban number.