1354450140 has 96 divisors (see below), whose sum is σ = 4349829120. Its totient is φ = 349531200.

The previous prime is 1354450121. The next prime is 1354450187. The reversal of 1354450140 is 410544531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23716 + ... + 57195.

It is an arithmetic number, because the mean of its divisors is an integer number (45310720).

Almost surely, 2^1354450140 is an apocalyptic number.

1354450140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1354450140 is an abundant number, since it is smaller than the sum of its proper divisors (2995378980).

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

1354450140 is a wasteful number, since it uses less digits than its factorization.

1354450140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80960 (or 80952 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1354450140 is about 36802.8550522918. The cubic root of 1354450140 is about 1106.4225217864.

Adding to 1354450140 its reverse (410544531), we get a palindrome (1764994671).

The spelling of 1354450140 in words is "one billion, three hundred fifty-four million, four hundred fifty thousand, one hundred forty".