1602540651 has 4 divisors (see below), whose sum is σ = 2136720872. Its totient is φ = 1068360432.

The previous prime is 1602540619. The next prime is 1602540661. The reversal of 1602540651 is 1560452061.

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

It is not a de Polignac number, because 1602540651 - 2⁵ = 1602540619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1602540601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267090106 + ... + 267090111.

It is an arithmetic number, because the mean of its divisors is an integer number (534180218).

Almost surely, 2^1602540651 is an apocalyptic number.

1602540651 is a deficient number, since it is larger than the sum of its proper divisors (534180221).

1602540651 is an equidigital number, since it uses as much as digits as its factorization.

1602540651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534180220.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1602540651 is about 40031.7455402584. The cubic root of 1602540651 is about 1170.2258436116.

The spelling of 1602540651 in words is "one billion, six hundred two million, five hundred forty thousand, six hundred fifty-one".