1020154641 has 32 divisors (see below), whose sum is σ = 1509221376. Its totient is φ = 607800000.

The previous prime is 1020154637. The next prime is 1020154643. The reversal of 1020154641 is 1464510201.

It is a happy number.

1020154641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020154641 - 2² = 1020154637 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020154643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502270 + ... + 504296.

It is an arithmetic number, because the mean of its divisors is an integer number (47163168).

Almost surely, 2^1020154641 is an apocalyptic number.

1020154641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1020154641 is a deficient number, since it is larger than the sum of its proper divisors (489066735).

1020154641 is a wasteful number, since it uses less digits than its factorization.

1020154641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1020154641 is about 31939.8597523533. The cubic root of 1020154641 is about 1006.6735779511.

Adding to 1020154641 its reverse (1464510201), we get a palindrome (2484664842).

The spelling of 1020154641 in words is "one billion, twenty million, one hundred fifty-four thousand, six hundred forty-one".