134759621 has 2 divisors, whose sum is σ = 134759622. Its totient is φ = 134759620.

The previous prime is 134759593. The next prime is 134759657. The reversal of 134759621 is 126957431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86304100 + 48455521 = 9290^2 + 6961^2 .

It is a cyclic number.

It is not a de Polignac number, because 134759621 - 2¹⁰ = 134758597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134759671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67379810 + 67379811.

It is an arithmetic number, because the mean of its divisors is an integer number (67379811).

Almost surely, 2^134759621 is an apocalyptic number.

It is an amenable number.

134759621 is a deficient number, since it is larger than the sum of its proper divisors (1).

134759621 is an equidigital number, since it uses as much as digits as its factorization.

134759621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 134759621 is about 11608.6011646537. The cubic root of 134759621 is about 512.6881273252.

The spelling of 134759621 in words is "one hundred thirty-four million, seven hundred fifty-nine thousand, six hundred twenty-one".