147981653 has 4 divisors (see below), whose sum is σ = 148125120. Its totient is φ = 147838188.

The previous prime is 147981641. The next prime is 147981677. The reversal of 147981653 is 356189741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147981653 - 2⁴ = 147981637 is a prime.

It is a super-2 number, since 2×147981653² = 43797139249224818, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147981683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70175 + ... + 72252.

It is an arithmetic number, because the mean of its divisors is an integer number (37031280).

Almost surely, 2^147981653 is an apocalyptic number.

It is an amenable number.

147981653 is a deficient number, since it is larger than the sum of its proper divisors (143467).

147981653 is a wasteful number, since it uses less digits than its factorization.

147981653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143466.

The product of its digits is 181440, while the sum is 44.

The square root of 147981653 is about 12164.7709801706. The cubic root of 147981653 is about 528.9353887567.

The spelling of 147981653 in words is "one hundred forty-seven million, nine hundred eighty-one thousand, six hundred fifty-three".