147962897 has 4 divisors (see below), whose sum is σ = 149989860. Its totient is φ = 145935936.

The previous prime is 147962869. The next prime is 147962911. The reversal of 147962897 is 798269741.

It is a Cunningham number, because it is equal to 12164²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798269741 = 4813 ⋅165857.

It can be written as a sum of positive squares in 2 ways, for example, as 83978896 + 63984001 = 9164^2 + 7999^2 .

It is a cyclic number.

It is not a de Polignac number, because 147962897 - 2⁶ = 147962833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147962807) 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, 1013372 + ... + 1013517.

It is an arithmetic number, because the mean of its divisors is an integer number (37497465).

Almost surely, 2^147962897 is an apocalyptic number.

It is an amenable number.

147962897 is a deficient number, since it is larger than the sum of its proper divisors (2026963).

147962897 is an equidigital number, since it uses as much as digits as its factorization.

147962897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026962.

The product of its digits is 1524096, while the sum is 53.

The square root of 147962897 is about 12164.0000411049. Note that the first 4 decimals coincide. The cubic root of 147962897 is about 528.9130410960.

The spelling of 147962897 in words is "one hundred forty-seven million, nine hundred sixty-two thousand, eight hundred ninety-seven".