147090681 has 32 divisors (see below), whose sum is σ = 240779520. Its totient is φ = 88273152.

The previous prime is 147090679. The next prime is 147090689. The reversal of 147090681 is 186090741.

147090681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 147090681 - 2¹ = 147090679 is a prime.

It is a super-2 number, since 2×147090681² = 43271336874087522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (147090689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3591 + ... + 17523.

It is an arithmetic number, because the mean of its divisors is an integer number (7524360).

Almost surely, 2^147090681 is an apocalyptic number.

It is an amenable number.

147090681 is a deficient number, since it is larger than the sum of its proper divisors (93688839).

147090681 is a wasteful number, since it uses less digits than its factorization.

147090681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13982 (or 13976 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 147090681 is about 12128.0946978493. The cubic root of 147090681 is about 527.8717082418.

The spelling of 147090681 in words is "one hundred forty-seven million, ninety thousand, six hundred eighty-one".