172047037 has 4 divisors (see below), whose sum is σ = 173143036. Its totient is φ = 170951040.

The previous prime is 172046983. The next prime is 172047049. The reversal of 172047037 is 730740271.

172047037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33419961 + 138627076 = 5781^2 + 11774^2 .

It is a cyclic number.

It is not a de Polignac number, because 172047037 - 2¹⁹ = 171522749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172047067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547764 + ... + 548077.

It is an arithmetic number, because the mean of its divisors is an integer number (43285759).

Almost surely, 2^172047037 is an apocalyptic number.

It is an amenable number.

172047037 is a deficient number, since it is larger than the sum of its proper divisors (1095999).

172047037 is a wasteful number, since it uses less digits than its factorization.

172047037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095998.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 172047037 is about 13116.6701948322. The cubic root of 172047037 is about 556.1804671407.

The spelling of 172047037 in words is "one hundred seventy-two million, forty-seven thousand, thirty-seven".