1642572097 has 8 divisors (see below), whose sum is σ = 1731236000. Its totient is φ = 1554129504.

The previous prime is 1642572091. The next prime is 1642572133. The reversal of 1642572097 is 7902752461.

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

It is a cyclic number.

It is not a de Polignac number, because 1642572097 - 2³ = 1642572089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1642572091) 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, 39972 + ... + 69877.

It is an arithmetic number, because the mean of its divisors is an integer number (216404500).

Almost surely, 2^1642572097 is an apocalyptic number.

It is an amenable number.

1642572097 is a deficient number, since it is larger than the sum of its proper divisors (88663903).

1642572097 is a wasteful number, since it uses less digits than its factorization.

1642572097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110655.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 1642572097 is about 40528.6577251209. The cubic root of 1642572097 is about 1179.8898913345.

The spelling of 1642572097 in words is "one billion, six hundred forty-two million, five hundred seventy-two thousand, ninety-seven".