1451049138 has 48 divisors (see below), whose sum is σ = 3919720896. Its totient is φ = 376895520.

The previous prime is 1451049137. The next prime is 1451049157. The reversal of 1451049138 is 8319401541.

1451049138 is a `hidden beast` number, since 1 + 4 + 510 + 4 + 9 + 138 = 666.

It is not an unprimeable number, because it can be changed into a prime (1451049137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 522081 + ... + 524852.

It is an arithmetic number, because the mean of its divisors is an integer number (81660852).

Almost surely, 2^1451049138 is an apocalyptic number.

1451049138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1451049138 is an abundant number, since it is smaller than the sum of its proper divisors (2468671758).

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

1451049138 is a wasteful number, since it uses less digits than its factorization.

1451049138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046959 (or 1046956 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1451049138 is about 38092.6388951986. The cubic root of 1451049138 is about 1132.1241113239.

The spelling of 1451049138 in words is "one billion, four hundred fifty-one million, forty-nine thousand, one hundred thirty-eight".