140890417 has 4 divisors (see below), whose sum is σ = 142673920. Its totient is φ = 139106916.

The previous prime is 140890411. The next prime is 140890493. The reversal of 140890417 is 714098041.

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 not a de Polignac number, because 140890417 - 2¹¹ = 140888369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140890411) 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, 891633 + ... + 891790.

It is an arithmetic number, because the mean of its divisors is an integer number (35668480).

Almost surely, 2^140890417 is an apocalyptic number.

It is an amenable number.

140890417 is a deficient number, since it is larger than the sum of its proper divisors (1783503).

140890417 is an equidigital number, since it uses as much as digits as its factorization.

140890417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783502.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 140890417 is about 11869.7269134551. The cubic root of 140890417 is about 520.3479143597.

The spelling of 140890417 in words is "one hundred forty million, eight hundred ninety thousand, four hundred seventeen".