620143054 has 4 divisors (see below), whose sum is σ = 930214584. Its totient is φ = 310071526.

The previous prime is 620143037. The next prime is 620143063. The reversal of 620143054 is 450341026.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450341026 = 2 ⋅225170513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155035762 + ... + 155035765.

It is an arithmetic number, because the mean of its divisors is an integer number (232553646).

Almost surely, 2^620143054 is an apocalyptic number.

620143054 is a deficient number, since it is larger than the sum of its proper divisors (310071530).

620143054 is a wasteful number, since it uses less digits than its factorization.

620143054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310071529.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 620143054 is about 24902.6716237435. The cubic root of 620143054 is about 852.7674752297.

The spelling of 620143054 in words is "six hundred twenty million, one hundred forty-three thousand, fifty-four".