140051556 has 72 divisors (see below), whose sum is σ = 368921280. Its totient is φ = 44743104.

The previous prime is 140051543. The next prime is 140051567. The reversal of 140051556 is 655150041.

It is a happy number.

140051556 is a `hidden beast` number, since 140 + 0 + 515 + 5 + 6 = 666.

It is a super-2 number, since 2×140051556² = 39228876676042272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169761 + ... + 170583.

Almost surely, 2^140051556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140051556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184460640).

140051556 is an abundant number, since it is smaller than the sum of its proper divisors (228869724).

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

140051556 is a wasteful number, since it uses less digits than its factorization.

140051556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 140051556 is about 11834.3380042992. The cubic root of 140051556 is about 519.3131414640.

The spelling of 140051556 in words is "one hundred forty million, fifty-one thousand, five hundred fifty-six".