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140213461 = 3753127563
BaseRepresentation
bin10000101101101…
…11110011010101
3100202211120201011
420112313303111
5241343312321
621525132221
73321536413
oct1026676325
9322746634
10140213461
11721684a3
123ab5a071
132308355b
141489c2b3
15c499ae1
hex85b7cd5

140213461 has 16 divisors (see below), whose sum is σ = 148137984. Its totient is φ = 132560064.

The previous prime is 140213459. The next prime is 140213471. The reversal of 140213461 is 164312041.

It is a cyclic number.

It is not a de Polignac number, because 140213461 - 21 = 140213459 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 (140213401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248766 + ... + 249328.

It is an arithmetic number, because the mean of its divisors is an integer number (9258624).

Almost surely, 2140213461 is an apocalyptic number.

It is an amenable number.

140213461 is a deficient number, since it is larger than the sum of its proper divisors (7924523).

140213461 is a wasteful number, since it uses less digits than its factorization.

140213461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 140213461 is about 11841.1765040472. The cubic root of 140213461 is about 519.5131797396.

The spelling of 140213461 in words is "one hundred forty million, two hundred thirteen thousand, four hundred sixty-one".

Divisors: 1 37 53 127 563 1961 4699 6731 20831 29839 71501 249047 1104043 2645537 3789553 140213461