1620546124 has 6 divisors (see below), whose sum is σ = 2835955724. Its totient is φ = 810273060.

The previous prime is 1620546113. The next prime is 1620546133. The reversal of 1620546124 is 4216450261.

It is a happy number.

It is a super-2 number, since 2×1620546124² = 5252339480022846752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202568262 + ... + 202568269.

Almost surely, 2^1620546124 is an apocalyptic number.

It is an amenable number.

1620546124 is a deficient number, since it is larger than the sum of its proper divisors (1215409600).

1620546124 is a wasteful number, since it uses less digits than its factorization.

1620546124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405136535 (or 405136533 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1620546124 is about 40256.0073032585. The cubic root of 1620546124 is about 1174.5922530279.

Adding to 1620546124 its reverse (4216450261), we get a palindrome (5836996385).

The spelling of 1620546124 in words is "one billion, six hundred twenty million, five hundred forty-six thousand, one hundred twenty-four".