147239137 has 2 divisors, whose sum is σ = 147239138. Its totient is φ = 147239136.

The previous prime is 147239129. The next prime is 147239207. The reversal of 147239137 is 731932741.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123121216 + 24117921 = 11096^2 + 4911^2 .

It is a cyclic number.

It is not a de Polignac number, because 147239137 - 2³ = 147239129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147239096 and 147239105.

It is not a weakly prime, because it can be changed into another prime (147239117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73619568 + 73619569.

It is an arithmetic number, because the mean of its divisors is an integer number (73619569).

Almost surely, 2^147239137 is an apocalyptic number.

It is an amenable number.

147239137 is a deficient number, since it is larger than the sum of its proper divisors (1).

147239137 is an equidigital number, since it uses as much as digits as its factorization.

147239137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 147239137 is about 12134.2134891389. The cubic root of 147239137 is about 528.0492390279.

The spelling of 147239137 in words is "one hundred forty-seven million, two hundred thirty-nine thousand, one hundred thirty-seven".