1002553154 has 4 divisors (see below), whose sum is σ = 1503829734. Its totient is φ = 501276576.

The previous prime is 1002553151. The next prime is 1002553159. The reversal of 1002553154 is 4513552001.

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

It can be written as a sum of positive squares in only one way, i.e., 722158129 + 280395025 = 26873^2 + 16745^2 .

It is a super-2 number, since 2×1002553154² = 2010225653190695432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002553151) 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 as a sum of consecutive naturals, namely, 250638287 + ... + 250638290.

Almost surely, 2^1002553154 is an apocalyptic number.

1002553154 is a deficient number, since it is larger than the sum of its proper divisors (501276580).

1002553154 is an equidigital number, since it uses as much as digits as its factorization.

1002553154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501276579.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1002553154 is about 31663.1197768003. The cubic root of 1002553154 is about 1000.8503280706.

The spelling of 1002553154 in words is "one billion, two million, five hundred fifty-three thousand, one hundred fifty-four".