90143074029 has 4 divisors (see below), whose sum is σ = 120190765376. Its totient is φ = 60095382684.

The previous prime is 90143074009. The next prime is 90143074051. The reversal of 90143074029 is 92047034109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92047034109 = 3 ⋅30682344703.

It is not a de Polignac number, because 90143074029 - 2¹⁷ = 90142942957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90143074009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15023845669 + ... + 15023845674.

It is an arithmetic number, because the mean of its divisors is an integer number (30047691344).

Almost surely, 2^90143074029 is an apocalyptic number.

It is an amenable number.

90143074029 is a deficient number, since it is larger than the sum of its proper divisors (30047691347).

90143074029 is a wasteful number, since it uses less digits than its factorization.

90143074029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30047691346.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 90143074029 in words is "ninety billion, one hundred forty-three million, seventy-four thousand, twenty-nine".