134997553 has 2 divisors, whose sum is σ = 134997554. Its totient is φ = 134997552.

The previous prime is 134997547. The next prime is 134997587. The reversal of 134997553 is 355799431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87759424 + 47238129 = 9368^2 + 6873^2 .

It is a cyclic number.

It is not a de Polignac number, because 134997553 - 2¹⁷ = 134866481 is a prime.

It is not a weakly prime, because it can be changed into another prime (134997503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67498776 + 67498777.

It is an arithmetic number, because the mean of its divisors is an integer number (67498777).

Almost surely, 2^134997553 is an apocalyptic number.

It is an amenable number.

134997553 is a deficient number, since it is larger than the sum of its proper divisors (1).

134997553 is an equidigital number, since it uses as much as digits as its factorization.

134997553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 510300, while the sum is 46.

The square root of 134997553 is about 11618.8447360312. The cubic root of 134997553 is about 512.9896844945.

The spelling of 134997553 in words is "one hundred thirty-four million, nine hundred ninety-seven thousand, five hundred fifty-three".