147540457 has 2 divisors, whose sum is σ = 147540458. Its totient is φ = 147540456.

The previous prime is 147540413. The next prime is 147540527. The reversal of 147540457 is 754045741.

147540457 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., 146991376 + 549081 = 12124^2 + 741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147540457 is a prime.

It is not a weakly prime, because it can be changed into another prime (147540257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73770228 + 73770229.

It is an arithmetic number, because the mean of its divisors is an integer number (73770229).

Almost surely, 2^147540457 is an apocalyptic number.

It is an amenable number.

147540457 is a deficient number, since it is larger than the sum of its proper divisors (1).

147540457 is an equidigital number, since it uses as much as digits as its factorization.

147540457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 147540457 is about 12146.6232756269. The cubic root of 147540457 is about 528.4092053253.

The spelling of 147540457 in words is "one hundred forty-seven million, five hundred forty thousand, four hundred fifty-seven".