1451197770 has 192 divisors, whose sum is σ = 4116147840. Its totient is φ = 326177280.

The previous prime is 1451197763. The next prime is 1451197771. The reversal of 1451197770 is 777911541.

It is not an unprimeable number, because it can be changed into a prime (1451197771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3655212 + ... + 3655608.

It is an arithmetic number, because the mean of its divisors is an integer number (21438270).

Almost surely, 2^1451197770 is an apocalyptic number.

1451197770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1451197770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2058073920).

1451197770 is an abundant number, since it is smaller than the sum of its proper divisors (2664950070).

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

1451197770 is a wasteful number, since it uses less digits than its factorization.

1451197770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 42.

The square root of 1451197770 is about 38094.5897733523. The cubic root of 1451197770 is about 1132.1627647647.

The spelling of 1451197770 in words is "one billion, four hundred fifty-one million, one hundred ninety-seven thousand, seven hundred seventy".