147855797 has 2 divisors, whose sum is σ = 147855798. Its totient is φ = 147855796.

The previous prime is 147855793. The next prime is 147855803. The reversal of 147855797 is 797558741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93818596 + 54037201 = 9686^2 + 7351^2 .

It is a cyclic number.

It is not a de Polignac number, because 147855797 - 2² = 147855793 is a prime.

It is a super-2 number, since 2×147855797² = 43722673413010418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147855791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73927898 + 73927899.

It is an arithmetic number, because the mean of its divisors is an integer number (73927899).

Almost surely, 2^147855797 is an apocalyptic number.

It is an amenable number.

147855797 is a deficient number, since it is larger than the sum of its proper divisors (1).

147855797 is an equidigital number, since it uses as much as digits as its factorization.

147855797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469600, while the sum is 53.

The square root of 147855797 is about 12159.5969094374. The cubic root of 147855797 is about 528.7853958983.

It can be divided in two parts, 1478 and 55797, that added together give a palindrome (57275).

The spelling of 147855797 in words is "one hundred forty-seven million, eight hundred fifty-five thousand, seven hundred ninety-seven".