1002251562 has 32 divisors (see below), whose sum is σ = 2160578112. Its totient is φ = 308116224.

The previous prime is 1002251557. The next prime is 1002251563. The reversal of 1002251562 is 2651522001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1002251563) 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 15 ways as a sum of consecutive naturals, for example, 96213 + ... + 106119.

It is an arithmetic number, because the mean of its divisors is an integer number (67518066).

Almost surely, 2^1002251562 is an apocalyptic number.

1002251562 is an abundant number, since it is smaller than the sum of its proper divisors (1158326550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002251562 is a wasteful number, since it uses less digits than its factorization.

1002251562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1002251562 is about 31658.3569061946. The cubic root of 1002251562 is about 1000.7499580889.

Adding to 1002251562 its reverse (2651522001), we get a palindrome (3653773563).

The spelling of 1002251562 in words is "one billion, two million, two hundred fifty-one thousand, five hundred sixty-two".