140021467 has 2 divisors, whose sum is σ = 140021468. Its totient is φ = 140021466.

The previous prime is 140021461. The next prime is 140021501. The reversal of 140021467 is 764120041.

140021467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140021467 - 2²⁷ = 5803739 is a prime.

It is a super-2 number, since 2×140021467² = 39212022441664178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140021461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70010733 + 70010734.

It is an arithmetic number, because the mean of its divisors is an integer number (70010734).

Almost surely, 2^140021467 is an apocalyptic number.

140021467 is a deficient number, since it is larger than the sum of its proper divisors (1).

140021467 is an equidigital number, since it uses as much as digits as its factorization.

140021467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 140021467 is about 11833.0666777467. The cubic root of 140021467 is about 519.2759486551.

The spelling of 140021467 in words is "one hundred forty million, twenty-one thousand, four hundred sixty-seven".