1451143990 has 16 divisors (see below), whose sum is σ = 2612677680. Its totient is φ = 580320160.

The previous prime is 1451143979. The next prime is 1451143997. The reversal of 1451143990 is 993411541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451143997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34596 + ... + 64024.

It is an arithmetic number, because the mean of its divisors is an integer number (163292355).

Almost surely, 2^1451143990 is an apocalyptic number.

1451143990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1451143990 is a deficient number, since it is larger than the sum of its proper divisors (1161533690).

1451143990 is a wasteful number, since it uses less digits than its factorization.

1451143990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34367.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1451143990 is about 38093.8838922996. The cubic root of 1451143990 is about 1132.1487789692.

The spelling of 1451143990 in words is "one billion, four hundred fifty-one million, one hundred forty-three thousand, nine hundred ninety".