147720437526601 has 2 divisors, whose sum is σ = 147720437526602. Its totient is φ = 147720437526600.

The previous prime is 147720437526577. The next prime is 147720437526619. The reversal of 147720437526601 is 106625734027741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131583955710025 + 16136481816576 = 11471005^2 + 4017024^2 .

It is a cyclic number.

It is not a de Polignac number, because 147720437526601 - 2¹⁵ = 147720437493833 is a prime.

It is a super-2 number, since 2×147720437526601² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147720437526671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73860218763300 + 73860218763301.

It is an arithmetic number, because the mean of its divisors is an integer number (73860218763301).

Almost surely, 2^{147720437526601} is an apocalyptic number.

It is an amenable number.

147720437526601 is a deficient number, since it is larger than the sum of its proper divisors (1).

147720437526601 is an equidigital number, since it uses as much as digits as its factorization.

147720437526601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11854080, while the sum is 55.

The spelling of 147720437526601 in words is "one hundred forty-seven trillion, seven hundred twenty billion, four hundred thirty-seven million, five hundred twenty-six thousand, six hundred one".