620014531 has 6 divisors (see below), whose sum is σ = 658631660. Its totient is φ = 583542816.

The previous prime is 620014393. The next prime is 620014537. The reversal of 620014531 is 135410026.

It is not a de Polignac number, because 620014531 - 2¹⁵ = 619981763 is a prime.

It is a super-2 number, since 2×620014531² = 768836037302299922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620014537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1072401 + ... + 1072978.

Almost surely, 2^620014531 is an apocalyptic number.

620014531 is a deficient number, since it is larger than the sum of its proper divisors (38617129).

620014531 is a wasteful number, since it uses less digits than its factorization.

620014531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145413 (or 2145396 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 620014531 is about 24900.0909837695. The cubic root of 620014531 is about 852.7085598951.

Adding to 620014531 its reverse (135410026), we get a palindrome (755424557).

The spelling of 620014531 in words is "six hundred twenty million, fourteen thousand, five hundred thirty-one".