1453165720 has 16 divisors (see below), whose sum is σ = 3269622960. Its totient is φ = 581266272.

The previous prime is 1453165717. The next prime is 1453165739. The reversal of 1453165720 is 275613541.

It is a super-2 number, since 2×1453165720² = 4223381219566236800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18164532 + ... + 18164611.

It is an arithmetic number, because the mean of its divisors is an integer number (204351435).

Almost surely, 2^1453165720 is an apocalyptic number.

1453165720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453165720 is an abundant number, since it is smaller than the sum of its proper divisors (1816457240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1453165720 is a wasteful number, since it uses less digits than its factorization.

1453165720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36329154 (or 36329150 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1453165720 is about 38120.4108057613. The cubic root of 1453165720 is about 1132.6743038944.

The spelling of 1453165720 in words is "one billion, four hundred fifty-three million, one hundred sixty-five thousand, seven hundred twenty".