147557 has 2 divisors, whose sum is σ = 147558. Its totient is φ = 147556.

The previous prime is 147551. The next prime is 147571. The reversal of 147557 is 755741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101761 + 45796 = 319^2 + 214^2 .

It is a cyclic number.

It is not a de Polignac number, because 147557 - 2⁴ = 147541 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147557.

It is not a weakly prime, because it can be changed into another prime (147551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73778 + 73779.

It is an arithmetic number, because the mean of its divisors is an integer number (73779).

2¹⁴⁷⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

147557 is a deficient number, since it is larger than the sum of its proper divisors (1).

147557 is an equidigital number, since it uses as much as digits as its factorization.

147557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4900, while the sum is 29.

The square root of 147557 is about 384.1314879049. The cubic root of 147557 is about 52.8428953913.

It can be divided in two parts, 14755 and 7, that multiplied together give a triangular number (103285 = T₄₅₄).

The spelling of 147557 in words is "one hundred forty-seven thousand, five hundred fifty-seven".