7151500081 has 8 divisors (see below), whose sum is σ = 8053302528. Its totient is φ = 6291642000.

The previous prime is 7151500073. The next prime is 7151500121. The reversal of 7151500081 is 1800051517.

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

It is a cyclic number.

It is not a de Polignac number, because 7151500081 - 2³ = 7151500073 is a prime.

It is a super-2 number, since 2×7151500081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7151500051) 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, 10485730 + ... + 10486411.

It is an arithmetic number, because the mean of its divisors is an integer number (1006662816).

Almost surely, 2^7151500081 is an apocalyptic number.

It is an amenable number.

7151500081 is a deficient number, since it is larger than the sum of its proper divisors (901802447).

7151500081 is a wasteful number, since it uses less digits than its factorization.

7151500081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20972183.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 7151500081 is about 84566.5423261469. The cubic root of 7151500081 is about 1926.6332419812.

Adding to 7151500081 its reverse (1800051517), we get a palindrome (8951551598).

The spelling of 7151500081 in words is "seven billion, one hundred fifty-one million, five hundred thousand, eighty-one".