147951797 has 4 divisors (see below), whose sum is σ = 169087776. Its totient is φ = 126815820.

The previous prime is 147951781. The next prime is 147951827. The reversal of 147951797 is 797159741.

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 147951797 - 2⁴ = 147951781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147951497) 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, 10567979 + ... + 10567992.

It is an arithmetic number, because the mean of its divisors is an integer number (42271944).

Almost surely, 2^147951797 is an apocalyptic number.

It is an amenable number.

147951797 is a deficient number, since it is larger than the sum of its proper divisors (21135979).

147951797 is an equidigital number, since it uses as much as digits as its factorization.

147951797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21135978.

The product of its digits is 555660, while the sum is 50.

The square root of 147951797 is about 12163.5437681623. The cubic root of 147951797 is about 528.8998146234.

The spelling of 147951797 in words is "one hundred forty-seven million, nine hundred fifty-one thousand, seven hundred ninety-seven".