990071151 has 8 divisors (see below), whose sum is σ = 1321025664. Its totient is φ = 659582040.

The previous prime is 990071141. The next prime is 990071167. The reversal of 990071151 is 151170099.

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 990071151 - 2⁵ = 990071119 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990071101) 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, 111355 + ... + 119916.

It is an arithmetic number, because the mean of its divisors is an integer number (165128208).

Almost surely, 2^990071151 is an apocalyptic number.

990071151 is a deficient number, since it is larger than the sum of its proper divisors (330954513).

990071151 is a wasteful number, since it uses less digits than its factorization.

990071151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232701.

The product of its (nonzero) digits is 2835, while the sum is 33.

The square root of 990071151 is about 31465.3960884016. The cubic root of 990071151 is about 996.6793692834.

The spelling of 990071151 in words is "nine hundred ninety million, seventy-one thousand, one hundred fifty-one".