620134357 has 4 divisors (see below), whose sum is σ = 630300556. Its totient is φ = 609968160.

The previous prime is 620134351. The next prime is 620134367. The reversal of 620134357 is 753431026.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 753431026 = 2 ⋅376715513.

It can be written as a sum of positive squares in 2 ways, for example, as 10982596 + 609151761 = 3314^2 + 24681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620134357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620134351) 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, 5083008 + ... + 5083129.

It is an arithmetic number, because the mean of its divisors is an integer number (157575139).

Almost surely, 2^620134357 is an apocalyptic number.

It is an amenable number.

620134357 is a deficient number, since it is larger than the sum of its proper divisors (10166199).

620134357 is a wasteful number, since it uses less digits than its factorization.

620134357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10166198.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 620134357 is about 24902.4970033127. The cubic root of 620134357 is about 852.7634887552.

The spelling of 620134357 in words is "six hundred twenty million, one hundred thirty-four thousand, three hundred fifty-seven".