140902477 has 8 divisors (see below), whose sum is σ = 149951736. Its totient is φ = 131937792.

The previous prime is 140902459. The next prime is 140902481. The reversal of 140902477 is 774209041.

It can be written as a sum of positive squares in 4 ways, for example, as 39175081 + 101727396 = 6259^2 + 10086^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 140902477 - 2¹¹ = 140900429 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 (140902417) 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, 17688 + ... + 24385.

It is an arithmetic number, because the mean of its divisors is an integer number (18743967).

Almost surely, 2^140902477 is an apocalyptic number.

140902477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

140902477 is a deficient number, since it is larger than the sum of its proper divisors (9049259).

140902477 is a wasteful number, since it uses less digits than its factorization.

140902477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42287.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 140902477 is about 11870.2349176417. The cubic root of 140902477 is about 520.3627609262.

The spelling of 140902477 in words is "one hundred forty million, nine hundred two thousand, four hundred seventy-seven".