1002155502 has 32 divisors (see below), whose sum is σ = 2025492480. Its totient is φ = 330536960.

The previous prime is 1002155501. The next prime is 1002155503. The reversal of 1002155502 is 2055512001.

It is an interprime number because it is at equal distance from previous prime (1002155501) and next prime (1002155503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002155501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299374 + ... + 302702.

It is an arithmetic number, because the mean of its divisors is an integer number (63296640).

Almost surely, 2^1002155502 is an apocalyptic number.

1002155502 is an abundant number, since it is smaller than the sum of its proper divisors (1023336978).

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

1002155502 is a wasteful number, since it uses less digits than its factorization.

1002155502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1002155502 is about 31656.8397348819. The cubic root of 1002155502 is about 1000.7179850408.

Adding to 1002155502 its reverse (2055512001), we get a palindrome (3057667503).

The spelling of 1002155502 in words is "one billion, two million, one hundred fifty-five thousand, five hundred two".