1451501020 has 24 divisors (see below), whose sum is σ = 3180681504. Its totient is φ = 555356736.

The previous prime is 1451500957. The next prime is 1451501027. The reversal of 1451501020 is 201051541.

It is a super-2 number, since 2×1451501020² = 4213710422122080800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451501027) 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, 1577259 + ... + 1578178.

It is an arithmetic number, because the mean of its divisors is an integer number (132528396).

Almost surely, 2^1451501020 is an apocalyptic number.

1451501020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451501020 is an abundant number, since it is smaller than the sum of its proper divisors (1729180484).

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

1451501020 is a wasteful number, since it uses less digits than its factorization.

1451501020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155469 (or 3155467 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1451501020 is about 38098.5697894291. The cubic root of 1451501020 is about 1132.2416201888.

Adding to 1451501020 its reverse (201051541), we get a palindrome (1652552561).

The spelling of 1451501020 in words is "one billion, four hundred fifty-one million, five hundred one thousand, twenty".