1620130253 has 8 divisors (see below), whose sum is σ = 1861922880. Its totient is φ = 1380924000.

The previous prime is 1620130249. The next prime is 1620130261. The reversal of 1620130253 is 3520310261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1620130253 - 2² = 1620130249 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 (1620130273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645248 + ... + 647753.

It is an arithmetic number, because the mean of its divisors is an integer number (232740360).

Almost surely, 2^1620130253 is an apocalyptic number.

It is an amenable number.

1620130253 is a deficient number, since it is larger than the sum of its proper divisors (241792627).

1620130253 is a wasteful number, since it uses less digits than its factorization.

1620130253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293187.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1620130253 is about 40250.8416433744. The cubic root of 1620130253 is about 1174.4917682512.

The spelling of 1620130253 in words is "one billion, six hundred twenty million, one hundred thirty thousand, two hundred fifty-three".