172499061 has 12 divisors (see below), whose sum is σ = 267549792. Its totient is φ = 98570808.

The previous prime is 172499053. The next prime is 172499083. The reversal of 172499061 is 160994271.

It is not a de Polignac number, because 172499061 - 2³ = 172499053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172494061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586585 + ... + 586878.

It is an arithmetic number, because the mean of its divisors is an integer number (22295816).

Almost surely, 2^172499061 is an apocalyptic number.

It is an amenable number.

172499061 is a deficient number, since it is larger than the sum of its proper divisors (95050731).

172499061 is a wasteful number, since it uses less digits than its factorization.

172499061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173480 (or 1173473 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 172499061 is about 13133.8897893960. The cubic root of 172499061 is about 556.6671306883.

The spelling of 172499061 in words is "one hundred seventy-two million, four hundred ninety-nine thousand, sixty-one".