147521039 has 2 divisors, whose sum is σ = 147521040. Its totient is φ = 147521038.

The previous prime is 147521021. The next prime is 147521051. The reversal of 147521039 is 930125741.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147521039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147520996 and 147521014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147551039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73760519 + 73760520.

It is an arithmetic number, because the mean of its divisors is an integer number (73760520).

Almost surely, 2^147521039 is an apocalyptic number.

147521039 is a deficient number, since it is larger than the sum of its proper divisors (1).

147521039 is an equidigital number, since it uses as much as digits as its factorization.

147521039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 147521039 is about 12145.8239325292. The cubic root of 147521039 is about 528.3860227571.

The spelling of 147521039 in words is "one hundred forty-seven million, five hundred twenty-one thousand, thirty-nine".