172042629 has 8 divisors (see below), whose sum is σ = 250243872. Its totient is φ = 104268240.

The previous prime is 172042621. The next prime is 172042681. The reversal of 172042629 is 926240271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172042629 - 2³ = 172042621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 5213413 = 172042629 / (1 + 7 + 2 + 0 + 4 + 2 + 6 + 2 + 9).

It is a self number, because there is not a number n which added to its sum of digits gives 172042629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172042621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2606674 + ... + 2606739.

It is an arithmetic number, because the mean of its divisors is an integer number (31280484).

Almost surely, 2^172042629 is an apocalyptic number.

It is an amenable number.

172042629 is a deficient number, since it is larger than the sum of its proper divisors (78201243).

172042629 is a wasteful number, since it uses less digits than its factorization.

172042629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213427.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 172042629 is about 13116.5021633056. The cubic root of 172042629 is about 556.1757171520.

The spelling of 172042629 in words is "one hundred seventy-two million, forty-two thousand, six hundred twenty-nine".