147969553 has 2 divisors, whose sum is σ = 147969554. Its totient is φ = 147969552.

The previous prime is 147969539. The next prime is 147969599. The reversal of 147969553 is 355969741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83777409 + 64192144 = 9153^2 + 8012^2 .

It is a cyclic number.

It is not a de Polignac number, because 147969553 - 2²¹ = 145872401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147969497 and 147969506.

It is not a weakly prime, because it can be changed into another prime (147919553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73984776 + 73984777.

It is an arithmetic number, because the mean of its divisors is an integer number (73984777).

Almost surely, 2^147969553 is an apocalyptic number.

It is an amenable number.

147969553 is a deficient number, since it is larger than the sum of its proper divisors (1).

147969553 is an equidigital number, since it uses as much as digits as its factorization.

147969553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 49.

The square root of 147969553 is about 12164.2736322396. The cubic root of 147969553 is about 528.9209718959.

The spelling of 147969553 in words is "one hundred forty-seven million, nine hundred sixty-nine thousand, five hundred fifty-three".