1020332154 has 16 divisors (see below), whose sum is σ = 2041500960. Its totient is φ = 339971280.

The previous prime is 1020332153. The next prime is 1020332179. The reversal of 1020332154 is 4512330201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020332154.

It is not an unprimeable number, because it can be changed into a prime (1020332153) 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, 18409 + ... + 48780.

It is an arithmetic number, because the mean of its divisors is an integer number (127593810).

Almost surely, 2^1020332154 is an apocalyptic number.

1020332154 is an abundant number, since it is smaller than the sum of its proper divisors (1021168806).

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

1020332154 is a wasteful number, since it uses less digits than its factorization.

1020332154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69725.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1020332154 is about 31942.6384946516. The cubic root of 1020332154 is about 1006.7319636362.

Adding to 1020332154 its reverse (4512330201), we get a palindrome (5532662355).

The spelling of 1020332154 in words is "one billion, twenty million, three hundred thirty-two thousand, one hundred fifty-four".