140052061 has 4 divisors (see below), whose sum is σ = 140082592. Its totient is φ = 140021532.

The previous prime is 140052013. The next prime is 140052113. The reversal of 140052061 is 160250041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140052061 is a prime.

It is a super-2 number, since 2×140052061² = 39229159580695442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140052361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6831 + ... + 18076.

It is an arithmetic number, because the mean of its divisors is an integer number (35020648).

Almost surely, 2^140052061 is an apocalyptic number.

It is an amenable number.

140052061 is a deficient number, since it is larger than the sum of its proper divisors (30531).

140052061 is an equidigital number, since it uses as much as digits as its factorization.

140052061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30530.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 140052061 is about 11834.3593404966. The cubic root of 140052061 is about 519.3137656456.

The spelling of 140052061 in words is "one hundred forty million, fifty-two thousand, sixty-one".