140761540 has 12 divisors (see below), whose sum is σ = 295599276. Its totient is φ = 56304608.

The previous prime is 140761531. The next prime is 140761559. The reversal of 140761540 is 45167041.

It can be written as a sum of positive squares in 2 ways, for example, as 35617024 + 105144516 = 5968^2 + 10254^2 .

It is a super-2 number, since 2×140761540² = 39627622286343200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140761499 and 140761508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3519019 + ... + 3519058.

It is an arithmetic number, because the mean of its divisors is an integer number (24633273).

Almost surely, 2^140761540 is an apocalyptic number.

140761540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140761540 is an abundant number, since it is smaller than the sum of its proper divisors (154837736).

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

140761540 is a wasteful number, since it uses less digits than its factorization.

140761540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038086 (or 7038084 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 140761540 is about 11864.2968607499. The cubic root of 140761540 is about 520.1892062953.

The spelling of 140761540 in words is "one hundred forty million, seven hundred sixty-one thousand, five hundred forty".