140690101 has 4 divisors (see below), whose sum is σ = 141702400. Its totient is φ = 139677804.

The previous prime is 140690089. The next prime is 140690141. The reversal of 140690101 is 101096041.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101096041 = 673 ⋅150217.

It is a cyclic number.

It is not a de Polignac number, because 140690101 - 2⁹ = 140689589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140690141) 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, 505941 + ... + 506218.

It is an arithmetic number, because the mean of its divisors is an integer number (35425600).

Almost surely, 2^140690101 is an apocalyptic number.

It is an amenable number.

140690101 is a deficient number, since it is larger than the sum of its proper divisors (1012299).

140690101 is a wasteful number, since it uses less digits than its factorization.

140690101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012298.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 140690101 is about 11861.2858071965. The cubic root of 140690101 is about 520.1011896272.

The spelling of 140690101 in words is "one hundred forty million, six hundred ninety thousand, one hundred one".