147838997 has 2 divisors, whose sum is σ = 147838998. Its totient is φ = 147838996.

The previous prime is 147838991. The next prime is 147839033. The reversal of 147838997 is 799838741.

147838997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125238481 + 22600516 = 11191^2 + 4754^2 .

It is a cyclic number.

It is not a de Polignac number, because 147838997 - 2⁸ = 147838741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147838991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73919498 + 73919499.

It is an arithmetic number, because the mean of its divisors is an integer number (73919499).

Almost surely, 2^147838997 is an apocalyptic number.

It is an amenable number.

147838997 is a deficient number, since it is larger than the sum of its proper divisors (1).

147838997 is an equidigital number, since it uses as much as digits as its factorization.

147838997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 56.

The square root of 147838997 is about 12158.9060774397. The cubic root of 147838997 is about 528.7653675299.

The spelling of 147838997 in words is "one hundred forty-seven million, eight hundred thirty-eight thousand, nine hundred ninety-seven".