1020145154534 has 64 divisors (see below), whose sum is σ = 1792803290112. Its totient is φ = 430191129600.

The previous prime is 1020145154507. The next prime is 1020145154557. The reversal of 1020145154534 is 4354515410201.

It is a happy number.

It is a super-2 number, since 2×1020145154534² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020145154494 and 1020145154503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49979759 + ... + 50000165.

It is an arithmetic number, because the mean of its divisors is an integer number (28012551408).

Almost surely, 2^{1020145154534} is an apocalyptic number.

1020145154534 is a deficient number, since it is larger than the sum of its proper divisors (772658135578).

1020145154534 is a wasteful number, since it uses less digits than its factorization.

1020145154534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22341.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 1020145154534 in words is "one trillion, twenty billion, one hundred forty-five million, one hundred fifty-four thousand, five hundred thirty-four".