140426481 has 8 divisors (see below), whose sum is σ = 201638080. Its totient is φ = 86416272.

The previous prime is 140426441. The next prime is 140426501. The reversal of 140426481 is 184624041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140426481 - 2⁶ = 140426417 is a prime.

It is a super-2 number, since 2×140426481² = 39439193132086722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140426411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1800301 + ... + 1800378.

It is an arithmetic number, because the mean of its divisors is an integer number (25204760).

Almost surely, 2^140426481 is an apocalyptic number.

It is an amenable number.

140426481 is a deficient number, since it is larger than the sum of its proper divisors (61211599).

140426481 is a wasteful number, since it uses less digits than its factorization.

140426481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600695.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 140426481 is about 11850.1679734930. The cubic root of 140426481 is about 519.7761376144.

The spelling of 140426481 in words is "one hundred forty million, four hundred twenty-six thousand, four hundred eighty-one".