172401059 has 2 divisors, whose sum is σ = 172401060. Its totient is φ = 172401058.

The previous prime is 172401001. The next prime is 172401071. The reversal of 172401059 is 950104271.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172401059 is a prime.

It is not a weakly prime, because it can be changed into another prime (172401659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86200529 + 86200530.

It is an arithmetic number, because the mean of its divisors is an integer number (86200530).

Almost surely, 2^172401059 is an apocalyptic number.

172401059 is a deficient number, since it is larger than the sum of its proper divisors (1).

172401059 is an equidigital number, since it uses as much as digits as its factorization.

172401059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 172401059 is about 13130.1583768057. The cubic root of 172401059 is about 556.5616908356.

The spelling of 172401059 in words is "one hundred seventy-two million, four hundred one thousand, fifty-nine".